From ian at iansidle.com Mon Jan 2 15:49:13 2012 From: ian at iansidle.com (Ian Sidle) Date: Mon, 2 Jan 2012 15:49:13 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325348102.1678.222.camel@jim-LAPTOP> References: <92F32B0F-7980-4C82-88EA-A80B78E2349B@iansidle.com> <1325348102.1678.222.camel@jim-LAPTOP> Message-ID: <2D434C8C-CDD7-4720-AF1D-DD2E20E8B596@iansidle.com> > With respect to power supplies, I once encountered a > drive that had suffered a power supply that failed then > recovered then failed then recovered... multiple times in > a few seconds. The lost+found directories for the file > systems were bizarre. I could not recover the data > (someone more expert than I managed to recover with the > help of exotic tools). Indeed, I've had similar incidents myself. I've also seen a few cases where the power supply failed and it spiked the voltage which then damaged the controller on the hard disk, preventing it from spinning. From the forms that I have read about people using ZFS and it's error-correcting capability, it becomes rather apparent when there is hardware problems (bad disk controller, bad memory, etc) because it is able to detect data inconsistency while traditionally those errors in the data were silently processed and saved back to disk. Ironically, this in a way increases the hardware requirements to use ZFS "properly" because you want to use ECC memory, which now requires a Server/workstation system rather then a mere "desktop" without ecc memory. Otherwise, there is the possibility that an error might sneak into the RAM, which would get passed to disk and then when the information is pulled back up an parity error is detected. The primary reason for ECC is because of background radiation (especially alpha particles), which has a probability to hit the memory chip in just the way, to cause a bit of information to flip from 1/0, which could crash your computer (or screw up your data) *if* it just happens to land at just the right spot at the right time. Sadly, there isn't much information in published research studies, so one is left with small scale studies and marketing speak at best, with a large amount of form postings based on personal experience. The big study most people reference is the google study[1] that makes some interesting comments and awakened some people, but the numbers were not collected in a "laboratory" environment so the academics don't trust their numbers very much. The "experts" say the probability of a bit error happening in RAM is somewhere around once a month to once an hour, depending on the volume of ram, the environment it is in and the person who is giving the statistic (and how much $$ they are likely to get from sales). I suspect reality is somewhere between "it happens more often then most people realize" but less then "We can't trust any data on any computer to ever be accurate". I've always wondered why it never because the default, since I don't think it costs that much more to add it (as is VERY common in embedded device) but there wasn't much demand for it from personal computers, so they didn't get that much volume from it. Amusingly, Microsoft at one point even DEMANDED that all computers that bear the "Vista Compatible" logo be using ECC memory, as they insist it is the leading cause of blue screens. [IMHO, I could believe /some/ were caused by, but I don't think it bears all of the blame...] In the end, most of the manufacturers told M$ to screw it by shipping non-vista-certified boxes running vista anyway and they eventually backed down. However, now that 8 and 16GB ram is becoming the norm for desktop computers, we might hit the wall and have to add ECC memory because the size of memory bits on the ram chips are so small now that background radiation/alpha particles might flip bits in memory much more frequently then they had in the past. Although it has been claimed this would happen a few times before, and somehow they keep finding a way to work around it for a little bit longer. The bottom line is - if it's a server (or at least has mission critical data), then you want to go out of your way to make sure you have good components and ECC memory. Thankfully, most brand-name production servers have had ECC for years (and some "workstations") but you always ended up paying much more for it, but it's worth it IMHO. If your running a counter-strike server, then data corruption isn't a big deal, but if this is where you keep your accounting information where having even one number be off could be a big problem. thanks, Ian [1]http://www.cs.toronto.edu/~bianca/papers/sigmetrics09.pdf From ian at iansidle.com Mon Jan 2 16:11:45 2012 From: ian at iansidle.com (Ian Sidle) Date: Mon, 2 Jan 2012 16:11:45 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive Message-ID: <41E6487E-F72E-4B7D-935A-F8954AF28AD3@iansidle.com> > It's a general-purpose *ix OS with a GNU userspace atop a Solaris > kernel. Well, it is kindof both - there is the Nexenta "core" that is free & OSS and then there is the http://nexentastor.org/ which is freeware-ish up to 18TB and then licensed above it (or if you want the extra support). I like it because it is has the debian package system and GNU userland tools vs straight-up Solaris, but it only has a few hundred packages vs the thousands that debian has (and technically is based on Ubuntu, but it doesn't use any of the UI stuff from it, as far as I can tell). I've played with the storage one and the interface is pretty slick. It's somewhere between a basic NAS and a "network appliance" type of product. It integrates pretty well with Windows and even the "Previous Versions" feature works with ZFS snapshots over the (now) kernel-based CIFS server. For more advanced stuff, you can SSH in and make changes the old fashioned way as well. There is also the free http://www.napp-it.org/ interface, which you can run on the core for something that is 100% OSS. In some ways it has more features in some departments and less then others than the NexentaStore product, but it's still "beta" and will take a while before the interface is made pretty. thanks, Ian -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Mon Jan 2 16:27:31 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 2 Jan 2012 16:27:31 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <41E6487E-F72E-4B7D-935A-F8954AF28AD3@iansidle.com> References: <41E6487E-F72E-4B7D-935A-F8954AF28AD3@iansidle.com> Message-ID: <20120103002731.GG22539@linuxmafia.com> Quoting Ian Sidle (ian at iansidle.com): > > It's a general-purpose *ix OS with a GNU userspace atop a Solaris > > kernel. > > Well, it is kindof both - there is the Nexenta "core" that is free & > OSS and then there is the http://nexentastor.org/ which is > freeware-ish up to 18TB and then licensed above it (or if you want the > extra support). My word 'it' (above) referred very explicitly to Nexenta the operating system -- not to the NexentaStor embedded appliance based on Nexenta OS with proprietary extensions. The reason I referred Jim to Wikipedia's Nexenta OS page was to eliminate Jim's confusion, by which he inferred that I must have been talking about an embedded appliance when I spoke of an operating system called Nexenta. You aren't helping when you say 'it is kind of both'. It isn't, and I took care to be specific. From rick at linuxmafia.com Mon Jan 2 16:50:43 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 2 Jan 2012 16:50:43 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <2D434C8C-CDD7-4720-AF1D-DD2E20E8B596@iansidle.com> References: <92F32B0F-7980-4C82-88EA-A80B78E2349B@iansidle.com> <1325348102.1678.222.camel@jim-LAPTOP> <2D434C8C-CDD7-4720-AF1D-DD2E20E8B596@iansidle.com> Message-ID: <20120103005043.GH22539@linuxmafia.com> Quoting Ian Sidle (ian at iansidle.com): > Indeed, I've had similar incidents myself. I've also seen a few cases > where the power supply failed and it spiked the voltage which then > damaged the controller on the hard disk, preventing it from spinning. > > From the forms that I have read... ^^^^^ 'forums', perhaps? > ...about people using ZFS and its error-correcting capability, it > becomes rather apparent when there is hardware problems (bad disk > controller, bad memory, etc) because it is able to detect data > inconsistency while traditionally those errors in the data were > silently processed and saved back to disk. Just to stress the point one more time, by far the most common cause of writing of garbage data isn't _bad_ hardware but rather hardware (especially HBAs and the circuitry in hard drives) that does random and erratic things during the fraction of a second after losing power. > Ironically, this in a way increases the hardware requirements to use > ZFS "properly" because you want to use ECC memory, which now requires > a Server/workstation system rather then a mere "desktop" without ecc > memory. Otherwise, there is the possibility that an error might sneak > into the RAM, which would get passed to disk and then when the > information is pulled back up an parity error is detected. But then there are the times when bad sticks of ECC RAM pass all conventional tests. Happened to me in 2006 -- two bad sticks of 512MB ECC RAM out of four, on a high-end server motherboard. The only obvious sign of the bad RAM was a suspicious pattern of occasional spontaneous reboots 'and one 'NMI: Dazed and confused but struggling to continue' console message, suspicious enough for me to finally run 256 parallel compilation processes of the 2.6.16 Linux kernel overnight with the console screen blanker disabled, leading to a freeze-up, and _then_ intermittent POST errors that I was able to isolate to two of the four sticks by enabling maximal extended-memory testing and swapping sticks around. http://linuxmafia.com/pipermail/conspire/2006-December/002662.html http://linuxmafia.com/pipermail/conspire/2006-December/002668.html http://linuxmafia.com/pipermail/conspire/2007-January/002743.html Anyway, ECC memory, even if defect-free, does nothing to address the most common hardware cause of filesystem corruption. From joshuag1 at mindspring.com Tue Jan 3 05:43:38 2012 From: joshuag1 at mindspring.com (Josh Greenland) Date: Tue, 03 Jan 2012 05:43:38 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: References: Message-ID: <4F03060A.50504@mindspring.com> Sameer Verma wrote: > Any recommendations on a 3TB Western Digital external USB drive? Came > natively with a NTFS. Access will be via Linux only and will be used > for backup. > > cheers, > Sameer Sameer, I don't have any professional Linux experience, but I've been a home user for years. Here are some thoughts: I don't know why EXT2 has even been mentioned as a possibility. Unlike maybe just about all the other file systems people are talking about in this thread, it's not a journaled file system, which I understand to mean that it would be a lot more likely to be corrupted if it's shut down in a bad way, for instance power is cut off before dismounting. I wouldn't even consider it. I've personally had trouble with JFS that I've had with no other file system. (I've used EXT2,3,4, XFS, JFS, ReiserFS, ZFS, a number of other Unix ones, maybe a one or two Linux ones I'm not remembering, FAT, HPFS and NTFS.) JFS has lost whole directories on multiple occasions for no good reason, and they were unrecoverable. After some websearching I found an article by two or three guys with impressive-looking credentials comparing Linux file systems that said this was a known problem with JFS. Unfortunately, I haven't been able to find the article again, but it might still be out there. All this was a few years ago, so things may have changed with JFS in the meantime. Still, my experience was unsettling enough that I've avoided it since. EXT4 has been accepted as a stable, usable file system relatively recently. Before then, it wasn't considered totally trustworthy. It's newer than EXT3, which some conventional wisdom considers the gold standard of Linux file system stability. EXT3 is not considered to be a speedy file system, but then who cares how fast reading or writing are or how fast its fsck is if you are recovering years of precious data? As to ZFS: accessing it through Linux is a hassle in my experience. It's more complicated than using any of the Linux file systems I've mentioned. It seems to me you don't want to mess with something that's unusually complicated and that has extra hassles attached to it if you're in a recover situation. But if you think its advantages make it worth it, I suggest strongly that you get to basically understand ZFS. It's its own little world. You want to become comfortable with the Linux software that accesses ZFS <> you are in a recovery situation. But I dunno, the Linux software for ZFS seems kinda kludge-y to me. I suppose it's reliable, but it might be a factor to consider in addition to ZFS's virtues when it's run in a purely Unix environment. From jim at systemateka.com Tue Jan 3 10:05:21 2012 From: jim at systemateka.com (jim) Date: Tue, 03 Jan 2012 10:05:21 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <4F03060A.50504@mindspring.com> References: <4F03060A.50504@mindspring.com> Message-ID: <1325613921.1658.26.camel@jim-LAPTOP> nice tho'ts, josh: thanks! here's a wrinkle to the discussion in the form of a question: what is a filesystem? i've occasionally presented the question to engineers and gurus and been surprised at the large proportion of answers that were disoriented and massively incomplete (e.g. "a filesystem has a root directory and subdirectories and files stored in those various directories" -- note that such an answer gives no clue as to the differences between filesystems). On Tue, 2012-01-03 at 05:43 -0800, Josh Greenland wrote: > Sameer Verma wrote: > > Any recommendations on a 3TB Western Digital external USB drive? Came > > natively with a NTFS. Access will be via Linux only and will be used > > for backup. > > > > cheers, > > Sameer > > Sameer, I don't have any professional Linux experience, but I've been a > home user for years. Here are some thoughts: > > I don't know why EXT2 has even been mentioned as a possibility. Unlike > maybe just about all the other file systems people are talking about in > this thread, it's not a journaled file system, which I understand to > mean that it would be a lot more likely to be corrupted if it's shut > down in a bad way, for instance power is cut off before dismounting. I > wouldn't even consider it. > > I've personally had trouble with JFS that I've had with no other file > system. (I've used EXT2,3,4, XFS, JFS, ReiserFS, ZFS, a number of other > Unix ones, maybe a one or two Linux ones I'm not remembering, FAT, HPFS > and NTFS.) JFS has lost whole directories on multiple occasions for no > good reason, and they were unrecoverable. After some websearching I > found an article by two or three guys with impressive-looking > credentials comparing Linux file systems that said this was a known > problem with JFS. Unfortunately, I haven't been able to find the > article again, but it might still be out there. > > All this was a few years ago, so things may have changed with JFS in the > meantime. Still, my experience was unsettling enough that I've avoided > it since. > > EXT4 has been accepted as a stable, usable file system relatively > recently. Before then, it wasn't considered totally trustworthy. It's > newer than EXT3, which some conventional wisdom considers the gold > standard of Linux file system stability. EXT3 is not considered to be a > speedy file system, but then who cares how fast reading or writing are > or how fast its fsck is if you are recovering years of precious data? > > As to ZFS: accessing it through Linux is a hassle in my experience. > It's more complicated than using any of the Linux file systems I've > mentioned. It seems to me you don't want to mess with something that's > unusually complicated and that has extra hassles attached to it if > you're in a recover situation. But if you think its advantages make it > worth it, I suggest strongly that you get to basically understand ZFS. > It's its own little world. You want to become comfortable with the > Linux software that accesses ZFS <> you are in a recovery > situation. But I dunno, the Linux software for ZFS seems kinda kludge-y > to me. I suppose it's reliable, but it might be a factor to consider > in addition to ZFS's virtues when it's run in a purely Unix environment. > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Tue Jan 3 14:14:13 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 14:14:13 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <4F03060A.50504@mindspring.com> References: <4F03060A.50504@mindspring.com> Message-ID: <20120103221413.GQ22539@linuxmafia.com> Quoting Josh Greenland (joshuag1 at mindspring.com): > I don't know why EXT2 has even been mentioned as a possibility. If I recall correctly the context in which a couple of other posters mentioned it, it was always either 'ext2/ext3' or in a context making likely that the writer meant 'the filesystem that is variously known as ext2 or ext3 depending on whether you use it with or without a journal'. > Unlike maybe just about all the other file systems people are > talking about in this thread, it's not a journaled file system, > which I understand to mean that it would be a lot more likely to be > corrupted if it's shut down in a bad way, for instance power is cut > off before dismounting. I wouldn't even consider it. Then, there are use cases you probably haven't yet considered. :r /etc/fstab # /etc/fstab: static file system information. # # proc /proc proc defaults 0 0 /dev/sda7 / ext3 defaults,errors=remount-ro 0 1 /dev/sda1 /boot ext2 defaults 0 2 /dev/md3 /home ext3 defaults 0 2 /dev/sda8 /recovery ext3 defaults 0 2 /dev/sda9 /usr ext2 nodev,ro 0 2 /dev/md4 /usr/local ext3 defaults 0 2 /dev/sda6 /var ext2 noatime,nodev,nosuid 0 2 /dev/md1 /var/lib ext3 nodev 0 2 /dev/md2 /var/spool ext3 defaults 0 2 /dev/md0 /var/www ext3 nodev,nosuid 0 2 /dev/sda5 none swap sw 0 0 /dev/sdb8 none swap sw 0 0 /dev/sdc8 none swap sw 0 0 /dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0 On this server, the /boot, and /usr filesystems are normally mounted read-only. /var is mounted read-write but, by the inherent nature of its contents, is (other than the three carveouts listed lower) dispensible. As with the noatime mount option on the /var mount, I get a premium of significantly increased mass-storage performance: the ext2 filesystem is an extremely fast one. From rick at linuxmafia.com Tue Jan 3 14:19:03 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 14:19:03 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325613921.1658.26.camel@jim-LAPTOP> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> Message-ID: <20120103221902.GR22539@linuxmafia.com> Quoting jim (jim at systemateka.com): > what is a filesystem? /usr/bin/stat is your friend. $ stat /dev/sda1 File: `/dev/sda1' Size: 0 Blocks: 0 IO Block: 4096 block special file Device: 5h/5d Inode: 2284 Links: 1 Device type: 8,1 Access: (0660/brw-rw----) Uid: ( 0/ root) Gid: ( 6/ disk) Access: 2011-07-05 16:46:41.397462801 -0700 Modify: 2011-07-05 16:45:56.741463552 -0700 Change: 2011-07-05 16:45:56.741463552 -0700 $ In case you want to ask 'What is a file?', same answer applies. $ stat /tmp/benefits.pdf File: `/tmp/benefits.pdf' Size: 224921 Blocks: 442 IO Block: 1024 regular file Device: 807h/2055d Inode: 163526 Links: 1 Access: (0600/-rw-------) Uid: ( 1000/ rick) Gid: ( 1000/ rick) Access: 2011-12-19 19:23:54.000000000 -0800 Modify: 2011-12-19 19:23:34.000000000 -0800 Change: 2011-12-19 19:23:34.000000000 -0800 $ $ stat /dev/urandom File: `/dev/urandom' Size: 0 Blocks: 0 IO Block: 4096 character special file Device: 5h/5d Inode: 550 Links: 1 Device type: 1,9 Access: (0666/crw-rw-rw-) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2011-07-05 16:45:01.134433136 -0700 Modify: 2011-07-05 16:45:01.134433136 -0700 Change: 2011-07-05 16:45:50.785465747 -0700 $ From pi at berkeley.edu Tue Jan 3 17:40:11 2012 From: pi at berkeley.edu (Paul Ivanov) Date: Tue, 3 Jan 2012 17:40:11 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120103221413.GQ22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> Message-ID: <20120104014011.GN2634@ykcyc> Rick Moen, on 2012-01-03 14:14, wrote: > :r /etc/fstab Thanks for this, Rick - I learned something. Specifically your particular uses of 'ro' and 'noatime'. I'm inferring that the purpose of ro is for security, is this correct, or are there other reasons? The noatime performance trick also looks like a gem - I didn't know about it. I think it's fairly instructive to peak around and learn about the contents of other folks' /etc/* - way more instructive than the "Show us your desktop" screenshot galleries I used to obsess over when I started playing with *nix circa 2000 (though, back then, they, too, had their use, just more limited). best, -- Paul Ivanov http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: From pi at berkeley.edu Tue Jan 3 18:01:07 2012 From: pi at berkeley.edu (Paul Ivanov) Date: Tue, 3 Jan 2012 18:01:07 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120103221902.GR22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> Message-ID: <20120104020107.GO2634@ykcyc> Rick Moen, on 2012-01-03 14:19, wrote: > Quoting jim (jim at systemateka.com): > > > what is a filesystem? > > /usr/bin/stat is your friend. ... > In case you want to ask 'What is a file?', same answer applies. I took Jim's question to be a more general one, where my response would have been something like "A specific set of protocols (and the implementation thereof) for providing a mapping of logical, hierarchically organized files and directories to their respective physical manifestation as bits encoded in some media (be it magnetization of a portion of a hard disk platter, or the reflectance pattern of a CD, etc)." A file, then would be "a logical (named) representation of a chunk of data, possibly with attached metadata, such as modification/creation/access times, read/write/execute permissions, etc". And a directory is "A file whose data consists entirely of the names of other files, which are all said to be logically contained within the directory." best, -- Paul Ivanov http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: From jim at systemateka.com Tue Jan 3 18:37:24 2012 From: jim at systemateka.com (jim) Date: Tue, 03 Jan 2012 18:37:24 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104020107.GO2634@ykcyc> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> <20120104020107.GO2634@ykcyc> Message-ID: <1325644644.1701.9.camel@jim-LAPTOP> Yes, Paul's answer is more to the point of my question. Rick's answer is certainly very helpful. My answer is "a filesystem is a technology that includes a database, a directory structure and a single unnamed directory, and some software routines in the kernel that can manage the database and directories." I've found that my definition provides an easy basis for explaining the idea of mounting filesystems to mount points. It also helps clarify the difference between filesystems on Windows systems and Unix-like systems. (I hope that the spelling of "filesystems" is not a barbarism; the local spell checker indicates it is.) I'm mainly ignorant of the classification of filesystem features (e.g. journaling, whatever features promote speedy data access, possibly alternately data surety...). Probably helpful to see such in tabular format that maps filesystem names to filesystem features. On Tue, 2012-01-03 at 18:01 -0800, Paul Ivanov wrote: > Rick Moen, on 2012-01-03 14:19, wrote: > > Quoting jim (jim at systemateka.com): > > > > > what is a filesystem? > > > > /usr/bin/stat is your friend. > ... > > In case you want to ask 'What is a file?', same answer applies. > > I took Jim's question to be a more general one, where my response > would have been something like "A specific set of protocols (and > the implementation thereof) for providing a mapping of logical, > hierarchically organized files and directories to their > respective physical manifestation as bits encoded in some media > (be it magnetization of a portion of a hard disk platter, or the > reflectance pattern of a CD, etc)." > > A file, then would be "a logical (named) representation of a > chunk of data, possibly with attached metadata, such as > modification/creation/access times, read/write/execute > permissions, etc". And a directory is "A file whose data consists > entirely of the names of other files, which are all said to be > logically contained within the directory." > > best, > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From jim at well.com Tue Jan 3 18:39:40 2012 From: jim at well.com (jim) Date: Tue, 03 Jan 2012 18:39:40 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120103221902.GR22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> Message-ID: <1325644780.1701.11.camel@jim-LAPTOP> I'm trying to discover how much of the information that the stat command returns comes from the inode tables and how much, if any, is stored in the directories, assuming an ext? type of filesystem. On Tue, 2012-01-03 at 14:19 -0800, Rick Moen wrote: > Quoting jim (jim at systemateka.com): > > > what is a filesystem? > > /usr/bin/stat is your friend. > > $ stat /dev/sda1 > File: `/dev/sda1' > Size: 0 Blocks: 0 IO Block: 4096 block > special file > Device: 5h/5d Inode: 2284 Links: 1 Device type: 8,1 > Access: (0660/brw-rw----) Uid: ( 0/ root) Gid: ( 6/ disk) > Access: 2011-07-05 16:46:41.397462801 -0700 > Modify: 2011-07-05 16:45:56.741463552 -0700 > Change: 2011-07-05 16:45:56.741463552 -0700 > $ > > > In case you want to ask 'What is a file?', same answer applies. > > > $ stat /tmp/benefits.pdf > File: `/tmp/benefits.pdf' > Size: 224921 Blocks: 442 IO Block: 1024 regular file > Device: 807h/2055d Inode: 163526 Links: 1 > Access: (0600/-rw-------) Uid: ( 1000/ rick) Gid: ( 1000/ rick) > Access: 2011-12-19 19:23:54.000000000 -0800 > Modify: 2011-12-19 19:23:34.000000000 -0800 > Change: 2011-12-19 19:23:34.000000000 -0800 > $ > > > $ stat /dev/urandom > File: `/dev/urandom' > Size: 0 Blocks: 0 IO Block: 4096 character special file > Device: 5h/5d Inode: 550 Links: 1 Device type: 1,9 > Access: (0666/crw-rw-rw-) Uid: ( 0/ root) Gid: ( 0/ root) > Access: 2011-07-05 16:45:01.134433136 -0700 > Modify: 2011-07-05 16:45:01.134433136 -0700 > Change: 2011-07-05 16:45:50.785465747 -0700 > $ > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Tue Jan 3 18:56:36 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 18:56:36 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104014011.GN2634@ykcyc> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> <20120104014011.GN2634@ykcyc> Message-ID: <20120104025636.GT22539@linuxmafia.com> Quoting Paul Ivanov (pi at berkeley.edu): > Thanks for this, Rick - I learned something. Specifically your > particular uses of 'ro' and 'noatime'. I'm inferring that > the purpose of ro is for security, is this correct, or are there > other reasons? My use of 'ro' on most filesystems of type ext2 is so that (1) they're always synced while mounted 'ro', and cannot have long fsck times and possible filesystem corruption upon accidental reboots (the aspect that removes the usual disadvantages of ext2, in that particular use case), and (2) affected filesystems are that much more difficult for a clumsy sysadmin (or a process run with system authority) to screw them up. You will notice that the ones mounted normally read-only are the ones that are normally static, such as /usr. That filesystem (except for the /usr/local portion of it) doesn't change except when you install/remove/update software. So, I leave it normally 'ro', and include a dpkg hook to automatically remount 'rw' before package operations and remount 'ro' after them. Protecting the system against a clumsy sysadmin is arguably a sort of security reason. (The administrative user is usually the largest single threat to the system's integrity.) One might also hope that 'ro' filesystems might be a bit more resistant to canned, automated attack scripts, in the sense of limiting the damage they can easily do, the way they are usually written by default. However, a well-written attack tool that has managed to achieve root access can always remount 'ro' filesystems as 'rw' before acting. > The noatime performance trick also looks like a gem - I didn't know > about it. Beware of (rare) software that relies on the atime field being updated. Some MTAs need their mail spool files to have that datum be accurate, for example. From rick at linuxmafia.com Tue Jan 3 18:59:12 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 18:59:12 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104020107.GO2634@ykcyc> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> <20120104020107.GO2634@ykcyc> Message-ID: <20120104025912.GU22539@linuxmafia.com> Quoting Paul Ivanov (pi at berkeley.edu): > I took Jim's question to be a more general one.... Sure. I know it was. My answer deliberately turned the question into 'What tool can I use to see what data structures exist for filesystems (and files)?' Because that's a much cooler question. ;-> From jim at systemateka.com Tue Jan 3 19:03:48 2012 From: jim at systemateka.com (jim) Date: Tue, 03 Jan 2012 19:03:48 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104025636.GT22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> <20120104014011.GN2634@ykcyc> <20120104025636.GT22539@linuxmafia.com> Message-ID: <1325646228.1701.17.camel@jim-LAPTOP> Seems like a few of these considerations might be a good basis for determining partitioning, yes? On Tue, 2012-01-03 at 18:56 -0800, Rick Moen wrote: > Quoting Paul Ivanov (pi at berkeley.edu): > > > Thanks for this, Rick - I learned something. Specifically your > > particular uses of 'ro' and 'noatime'. I'm inferring that > > the purpose of ro is for security, is this correct, or are there > > other reasons? > > My use of 'ro' on most filesystems of type ext2 is so that (1) they're > always synced while mounted 'ro', and cannot have long fsck times and > possible filesystem corruption upon accidental reboots (the aspect that > removes the usual disadvantages of ext2, in that particular use case), > and (2) affected filesystems are that much more difficult for a clumsy > sysadmin (or a process run with system authority) to screw them up. > > You will notice that the ones mounted normally read-only are the ones > that are normally static, such as /usr. That filesystem (except for the > /usr/local portion of it) doesn't change except when you > install/remove/update software. So, I leave it normally 'ro', and > include a dpkg hook to automatically remount 'rw' before package > operations and remount 'ro' after them. > > Protecting the system against a clumsy sysadmin is arguably a sort of > security reason. (The administrative user is usually the largest single > threat to the system's integrity.) One might also hope that 'ro' > filesystems might be a bit more resistant to canned, automated attack > scripts, in the sense of limiting the damage they can easily do, the way > they are usually written by default. However, a well-written attack > tool that has managed to achieve root access can always remount 'ro' > filesystems as 'rw' before acting. > > > > The noatime performance trick also looks like a gem - I didn't know > > about it. > > Beware of (rare) software that relies on the atime field being updated. > Some MTAs need their mail spool files to have that datum be accurate, > for example. > > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Tue Jan 3 19:09:51 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 19:09:51 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325644644.1701.9.camel@jim-LAPTOP> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> <20120104020107.GO2634@ykcyc> <1325644644.1701.9.camel@jim-LAPTOP> Message-ID: <20120104030951.GV22539@linuxmafia.com> Quoting jim (jim at systemateka.com): > My answer is "a filesystem is a technology that includes > a database, a directory structure and a single unnamed > directory, and some software routines in the kernel that can > manage the database and directories." Some problems with that. A filesystem does not incorporate any part of what's in your kernel. Filesystems need not include anything much like a database. In some filesystems (none that are Linux-native), the top-level directory is named. And filesystems aren't necessarily based on directories at all (though they usually are). You might want to read up on block groups, superblocks, and inodes. > Probably helpful to see such in tabular format that maps filesystem > names to filesystem features. Like this? https://en.wikipedia.org/wiki/Comparison_of_file_systems From rick at linuxmafia.com Tue Jan 3 19:23:07 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 19:23:07 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325646228.1701.17.camel@jim-LAPTOP> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> <20120104014011.GN2634@ykcyc> <20120104025636.GT22539@linuxmafia.com> <1325646228.1701.17.camel@jim-LAPTOP> Message-ID: <20120104032307.GM24477@linuxmafia.com> Quoting jim (jim at systemateka.com): > Seems like a few of these considerations might be a > good basis for determining partitioning, yes? Oddly enough, partitioning strategy and objectives has been the subject of endless discussion and is frequently the object of fervent opinion and advocacy. Lots of opinions, some half-assed, some much-assed, most of it hardly-assed-at-all. ;-> Karsten M. Self's opinions and rationales (which he carefully disclaimed to be appropriate in his view for laptops/workstations only) are here: 'Partitioning Guidelines' on http://linuxmafia.com/kb/Admin From jim at well.com Tue Jan 3 19:27:14 2012 From: jim at well.com (jim) Date: Tue, 03 Jan 2012 19:27:14 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104030951.GV22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> <20120104020107.GO2634@ykcyc> <1325644644.1701.9.camel@jim-LAPTOP> <20120104030951.GV22539@linuxmafia.com> Message-ID: <1325647634.1701.19.camel@jim-LAPTOP> God love you, Rick, you're a national treasure. I've been slogging through inode and superblock info, and thanks for the "block group" tip. On Tue, 2012-01-03 at 19:09 -0800, Rick Moen wrote: > Quoting jim (jim at systemateka.com): > > > My answer is "a filesystem is a technology that includes > > a database, a directory structure and a single unnamed > > directory, and some software routines in the kernel that can > > manage the database and directories." > > Some problems with that. > > A filesystem does not incorporate any part of what's in your kernel. > Filesystems need not include anything much like a database. In some > filesystems (none that are Linux-native), the top-level directory is > named. And filesystems aren't necessarily based on directories at all > (though they usually are). > > You might want to read up on block groups, superblocks, and inodes. > > > Probably helpful to see such in tabular format that maps filesystem > > names to filesystem features. > > Like this? > https://en.wikipedia.org/wiki/Comparison_of_file_systems > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Tue Jan 3 19:41:45 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 3 Jan 2012 19:41:45 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325647634.1701.19.camel@jim-LAPTOP> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> <20120103221902.GR22539@linuxmafia.com> <20120104020107.GO2634@ykcyc> <1325644644.1701.9.camel@jim-LAPTOP> <20120104030951.GV22539@linuxmafia.com> <1325647634.1701.19.camel@jim-LAPTOP> Message-ID: <20120104034145.GN24477@linuxmafia.com> Quoting Jim Stockford (jim at well.com): > God love you, Rick, you're a national treasure. I've been slogging > through inode and superblock info, and thanks for the "block group" > tip. To be perfectly honest, I don't really know this stuff very well. I mostly just look it up whenever knowing the details seems to matter, e.g., when you see 'No space left on device' on a filesystem where 'df' makes really clear that you have gobs and gobs of space. (Standard answer: You ran out of inodes. Rebuild the filesystem with more inodes.) I always considered the /usr/bin/stat utility cool because it provides full data sufficient to answer one of my standard interview questions, 'What's in an inode?' From ian at iansidle.com Tue Jan 3 21:12:09 2012 From: ian at iansidle.com (Ian Sidle) Date: Tue, 3 Jan 2012 21:12:09 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive Message-ID: <9260F8D0-2D03-47A5-A628-AF13160CADE2@iansidle.com> > I don't know why EXT2 has even been mentioned as a possibility. IMHO, ext2 isn't significantly different than ext3, besides it having a journal duck-taped to the side of it (which then slows it down quite a bit). You can take an EXT3 formatted volume, mount it on a system that is only capable of reading EXT2 and it will run just fine. True. the journaling feature does /not/ work in that situation, but you can't expect it to do something it wasn't programmed to do. Also, even though fsck can take a considerable amount of time, it is still the "for sure" way to check for filesystem consistancy. Journaling provides a shortcut to speedup the process, but some filesystems (like ext3) will force you to do a full fsck scan every once in a while because they assume stuff will slip through the cracks. FYI - You *can* adjust that parameter, to make it more frequently or less frequently then the recommended values and I think even turn it off entirely if one is so trusting. EXT4, on the otherhand is (from my understanding) a significantly different animal then ext2/ext3 is. True, you can "upgrade" from ext3 to ext4, but that process is not reversible and you loose compatibility with OS's (i.e. windows) that only understand ext2. From what I've seen, you can do a "dirty mount" and use an ext2 driver to load an ext4 disk, but it seems YMMV with how well it will work and your stuck with it being readonly. thanks, Ian From shane at faultymonk.org Tue Jan 3 21:34:04 2012 From: shane at faultymonk.org (Shane Tzen) Date: Tue, 3 Jan 2012 21:34:04 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120103221413.GQ22539@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> Message-ID: On Tue, Jan 3, 2012 at 2:14 PM, Rick Moen wrote: > Quoting Josh Greenland (joshuag1 at mindspring.com): >> I don't know why EXT2 has even been mentioned as a possibility. > If I recall correctly the context in which a couple of other posters > mentioned it, it was always either 'ext2/ext3' or in a context making > likely that the writer meant 'the filesystem that is variously known as > ext2 or ext3 depending on whether you use it with or without a journal'. Actually, in the context which it was mentioned, it was supposed to be used on a 3TB external USB drive to hold backup data. If you use ext2 in that context, you're essentially daring it to lose your data. The whole purpose of backup is to be able to have a reliable copy of your data. In the cases where you're going to the backup drive, it's generally a bad time to find that it needs an fsck before it'll mount, particularly if it'll be hours/days. I can't tell you from experience that I know how long it would take to fsck an 8TB volume, but I can tell you that if your job depended on getting some piece of data back in a timely manner, you're going to wish you ran a true journaling fs. From shane at faultymonk.org Tue Jan 3 21:41:48 2012 From: shane at faultymonk.org (Shane Tzen) Date: Tue, 3 Jan 2012 21:41:48 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <1325613921.1658.26.camel@jim-LAPTOP> References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> Message-ID: On Tue, Jan 3, 2012 at 10:05 AM, jim wrote: > what is a filesystem? A filesystem is a metaphor for writing and (more importantly) retrieving data/metadata. Otherwise, writing to /dev/null is really, really fast. ;) From shane at faultymonk.org Tue Jan 3 21:50:11 2012 From: shane at faultymonk.org (Shane Tzen) Date: Tue, 3 Jan 2012 21:50:11 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: References: <4F03060A.50504@mindspring.com> <1325613921.1658.26.camel@jim-LAPTOP> Message-ID: On Tue, Jan 3, 2012 at 9:41 PM, Shane Tzen wrote: > A filesystem is a metaphor for writing and (more importantly) > retrieving data/metadata. ?Otherwise, writing to /dev/null is really, > really fast. ;) Actually, make that, writing, organizing, and retrieving. From jim at well.com Tue Jan 3 22:22:25 2012 From: jim at well.com (jim) Date: Tue, 03 Jan 2012 22:22:25 -0800 Subject: [sf-lug] Laptops for kids/linux In-Reply-To: References: <1324444553.1718.23.camel@jim-LAPTOP> Message-ID: <1325658145.1701.35.camel@jim-LAPTOP> The guy with the connex to laptops has returned from vacation and sent me email re getting in touch with you. I replied with thanks, again copied your email and partimus.org web site, and asked if I can give you his email. as soon as i find out he's okay with that i'll send you the info that i have. jim 415 823 4590 my cellphone, call anytime On Thu, 2011-12-22 at 22:13 -0800, Christian Einfeldt wrote: > One of our Linux schools was heavily damaged in the fire that you all > probably saw on the news today. Now, more than ever, it will be > crucial for us to provide Linux notebook computers to the Creative > Arts Charter School (CACS), because they have lost a lot of space as a > result of this horrible 5 alarm fire. If we could get some help > getting a line on these notebooks, we would appreciate it. > Partimus.org is a recognized 501(c)(3), and so all donations, > including the value of notebooks, is fully tax deductible. Thanks in > advance for any help! > > The CACS is the crown jewel of our Linux schools effort. They use our > linux computers heavily. Any help is greatly appreciated! > > On Dec 20, 2011 9:15 PM, "jim" wrote: > > > > >From a Noisebridge sub-group discussion: > > > http://www.linuxtoys.org/multiseat/multiseat.html > > > > [I'm] "Still working on the donations, got a meeting > > tomorrow for seeing about getting NB (or another 501c3) > > Intuit's overflow machines. > > > "I work for Intuit, the guys who make TurboTax and > Quicken. We > > have a technology refresh policy where we retire > machines > > every 36 months or so. We used to offer the machines > back to > > the workforce for purchase, but then IT started > spending more > > time fixing computers that they no longer were > responsible > > for... so the process died. We were just recycling > the > > machines through a secure processing facility > (E-Waste, not > > sure of the details other than they wipe the hard > drives). > > > "So recently Intuit changed the policy and now > employees can > > request that retiring assets can be donated to a > nonprofit of > > their choice (either NB as a parent org, or if you > have > > another 501 setup with you computer work, directly > to that). I > > understand that you do work with putting computers > into the > > hands of underserved populations (like students, is > what I > > understood it to be, but what do I know). I would > like to work > > with you (assuming you're interested) in getting > machines > > donated to your linux install parties. The secret > awesome part > > about this is that Intuit generally standardizes on > machine > > types, which would mean that nearly identical > machines could > > be donated in semi-bulk amounts (I'd say 40-60 a > month, > > usually)." > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Wed Jan 4 00:03:15 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 4 Jan 2012 00:03:15 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> Message-ID: <20120104080315.GO24477@linuxmafia.com> Quoting Shane Tzen (shane at faultymonk.org): > Actually, in the context which it was mentioned, it was supposed to be > used on a 3TB external USB drive to hold backup data. Dude, there's been one _hell_ of a lot of topic drift since then, irrespective of leftover Subject header. No, I most certainly wouldn't use ext2 for that purpose either -- obviously. > I can't tell you from experience that I know how long it would take to > fsck an 8TB volume.... Dude.... Yes, we already know about fsck times, and the reason why ZFS / btrfs / etc. exist. Might I suggest that you cool it a bit? Thanks. From bliss-sf4ever at dslextreme.com Wed Jan 4 12:00:58 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Wed, 04 Jan 2012 12:00:58 -0800 Subject: [sf-lug] New open source server ahead of Microsoft Message-ID: <4F04AFFA.7070007@dslextreme.com> On another mailing list my online friend and web administrator posted this. "On an active site basis, the nginx story is even more impressive. According to Netcraft, nginx is now the second most popular web server for active sites, coming in at a 12.18 percent share. Following very closely behind is Microsoft at 12.14 percent. The leader in terms of active sites remains the open source Apache web server at 57.93 percent." http://www.serverwatch.com/server-news/nginx-passes-microsoft-for-active-web-server-share.html This is a faster than Apache open source server. bliss From shane at faultymonk.org Wed Jan 4 12:01:26 2012 From: shane at faultymonk.org (Shane Tzen) Date: Wed, 4 Jan 2012 12:01:26 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: <20120104080315.GO24477@linuxmafia.com> References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> <20120104080315.GO24477@linuxmafia.com> Message-ID: On Wed, Jan 4, 2012 at 12:03 AM, Rick Moen wrote: > Yes, we already know about fsck times, and the reason why ZFS / btrfs / > etc. exist. > Might I suggest that you cool it a bit? ?Thanks. Sure. Except to reiterate that ZFS and btrfs are not ready for mainstream use on Linux. To recommend doing so to someone seeking advice is irresponsible. Beyond the issues already mentioned about using ZFS and btrfs not being ready for production use (enterprise or otherwise), if not having recovery tools for a btrfs is not already deterrent enough, I would recommend reading http://lwn.net/Articles/393148/. From jackofnotrades at gmail.com Wed Jan 4 12:37:27 2012 From: jackofnotrades at gmail.com (Jeff Bragg) Date: Wed, 4 Jan 2012 12:37:27 -0800 Subject: [sf-lug] New open source server ahead of Microsoft In-Reply-To: <4F04AFFA.7070007@dslextreme.com> References: <4F04AFFA.7070007@dslextreme.com> Message-ID: My understanding is that many who use it do so primarily because it's lighter-weight than Apache, and as a result perhaps somewhat faster; at the very least, that seems to be the origin of the critical mass that put this project where it is now. It's been popular for Ruby on Rails, and perhaps other frameworks, in which case the front-end web server is often only providing load-balancing and/or proxying, and a built-in or specialized server (such as mongrel) is actually serving the content, often from multiple instances. Ironically, I wasn't actually using it while I was at a Rails shop (it was a bit less mature at the time). It's pretty feature-ful by now, but still (unsurprisingly) lacks some of the functionality of Apache. However, I think it provides plenty of functionality to be a good general-purpose choice. Its configuration scheme is arguably a little easier to pick up than Apache's, too. I've been using it on a cloud instance for a few months and haven't had a reason to complain about it. On Wed, Jan 4, 2012 at 12:00 PM, Bobbie Sellers < bliss-sf4ever at dslextreme.com> wrote: > On another mailing list my online friend and web administrator posted > this. > > "On an active site basis, the nginx story is even more impressive. > According to Netcraft, nginx is now the second most popular web server > for active sites, coming in at a 12.18 percent share. Following very > closely behind is Microsoft at 12.14 percent. The leader in terms of > active sites remains the open source Apache web server at 57.93 percent." > > http://www.serverwatch.com/**server-news/nginx-passes-** > microsoft-for-active-web-**server-share.html > > > > This is a faster than Apache open source server. > > bliss > > ______________________________**_________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/**listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Wed Jan 4 12:39:14 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 4 Jan 2012 12:39:14 -0800 Subject: [sf-lug] New open source server ahead of Microsoft In-Reply-To: <4F04AFFA.7070007@dslextreme.com> References: <4F04AFFA.7070007@dslextreme.com> Message-ID: <20120104203913.GG22539@linuxmafia.com> Quoting Bobbie Sellers (bliss-sf4ever at dslextreme.com): > This is a faster than Apache open source server. There are _many_ http daemons faster than Apache HTTPd is. Apache HTTPd attempts to have a stable and rich plugin interface and configuration language. Last I heard, their performance objective was merely to ensure that they can saturate a T-1 line using commodity hardware. nginx, Boa, thttpd, Lighttpd, Caudium WebServer, medusa, DNHTTPD, webfs, bozohttpd, MHTTPD, xs-httpd, Hydra, Nanoweb, Bauk, Monkey HTTP Daemon, Yaws, and Mathopd are all faster. TUX and kHTTPd are _way_ faster. All have drawbacks. From rick at linuxmafia.com Wed Jan 4 12:53:23 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 4 Jan 2012 12:53:23 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: References: <4F03060A.50504@mindspring.com> <20120103221413.GQ22539@linuxmafia.com> <20120104080315.GO24477@linuxmafia.com> Message-ID: <20120104205323.GR24477@linuxmafia.com> Quoting Shane Tzen (shane at faultymonk.org): > Sure. Except to reiterate that ZFS and btrfs are not ready for > mainstream use on Linux. To recommend doing so to someone seeking > advice is irresponsible. Then, all the more reason you need to cool it, because not only did I _nowhere_ so recommend, but in fact said the way I'd ZFS (if I had some mammoth storage host) would be via Nexenta (i.e., on Solaris rather than Linux). (I never recommend btrfs on _anything_, and, elsewhere, I rather scathingly shot down someone else's recommendation fairly recently: http://linuxmafia.com/pipermail/conspire/2011-November/006803.html ) It would be appropriate for you to apologise, at this point. Probably, you have me confused with someone else, but your firing aggressive personal criticism ('irresponsible') at the entirely wrong party has done you little credit. From kenshaffer80 at gmail.com Thu Jan 5 17:23:15 2012 From: kenshaffer80 at gmail.com (Ken Shaffer) Date: Thu, 5 Jan 2012 17:23:15 -0800 Subject: [sf-lug] I'll bring the Chumby in next Sun meeting, Woot has another sale on them today -- $99. Message-ID: I've been having fun getting X running in my chrooted Debian with touchscreen and usb keyboard support. Next Sunday meeting I'll bring it in. Currently, trying to set up mysql on the Debian usb stick and having "permission" problems with a socket -- nothing obvious, but the error has been pervasive for the last 5 years according to Google, so it's probably just a catch-all. Finally occurred to me maybe the socket was not the mysql one, but the syslog socket, and took a side path trying to find the system logs (which turned out to be in memory, because syslog was the busybox version, and ignores the /etc/syslog.conf ). Today, I noticed that Woot was selling the Chumby 8 for $99+5s&h, I knew the price would be lower in Jan. http://moofi.woot.com/moofi/vivalainternet -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at systemateka.com Sun Jan 8 14:10:12 2012 From: jim at systemateka.com (jim) Date: Sun, 08 Jan 2012 14:10:12 -0800 Subject: [sf-lug] OLPCSF and SFSU sign a memo of understanding Message-ID: <1326060612.14691.34.camel@jim-LAPTOP> as seen on the DVLUG mailing list: " For those of you not on the olpc-sf email list yet. :-) I'm reallypleased about this and am proud to be a part of http://olpcsf.org thatmeets monthly in SF, easily accessible from the Powell St. BARTstation & Westfield Shopping Center. The next meeting is Sat, Jan 14th from 10 AM - 2PM. Grant " -------------------- Sameer Verma is a professor at SFSU and has championed the "little green PC", i.e. the XO laptop product that is managed by the One Laptop Per Child effort ( http://one.laptop.org/ ) The OLPCSF group has a number of members who are championing the XO laptop both locally and in various regions around the world ( http://olpcsf.org/projects ). Here's a link to the OLPC site page for efforts in the SF bay area: http://wiki.laptop.org/go/OLPC_SanFranciscoBayArea Here's a link to join the OLPCSF mailing list: http://lists.laptop.org/listinfo/olpc-sf There are rumors of a new XO that may be released in tablet form factor. I'll probably catch hell for promoting a rumor. From nbs at sonic.net Sun Jan 8 21:37:14 2012 From: nbs at sonic.net (nbs) Date: Sun, 8 Jan 2012 21:37:14 -0800 Subject: [sf-lug] Reminder: Linux Users' Group of Davis, January 16: "Processing", plus 13th anniversary celebration Message-ID: <201201090537.q095bE6N001137@bolt.sonic.net> Reminder: Our big anniversary meeting and "Processing" talk is happening in a little over one week! The Linux Users' Group of Davis (LUGOD) will be holding the following meeting: Monday January 16, 2012 7:00pm - 9:00pm Presentation: "Processing" Gabriel Dunne, Designer, Tessellated Group LLC Processing ( http://processing.org/ ) is a popular open source programming language and environment used by scientists and artists alike to to create images, animations, and interactive exhibits. Built on the work of an earlier MIT Media Lab project, and initially developed to serve as a software sketchbook and to teach fundamentals of computer programming within a visual context, Processing has evolved into a tool for generating finished professional work. Today, there are tens of thousands of students, artists, designers, researchers, and hobbyists who use Processing for learning, prototyping, and production. Processing is free, and cross-platform, running on Windows and Mac OS X, as well as Linux. Anniversary Celebration: The Linux Users' Group of Davis, a non-profit computer club dedicated to Linux and the Free Software movement, will be marking its 13th birthday with free food and give-aways at this meeting. Sponsored in part by O'Reilly Media and ThinkGeek. This meeting will be held at: Veterans Memorial Center - Club Room 203 East 14th Street Davis, California 95616 For more details on this meeting, visit: http://www.lugod.org/meeting/upcoming/ For maps, directions, public transportation schedules, etc., visit: http://www.lugod.org/meeting/vetcenter/ ------------ About LUGOD: ------------ The Linux Users' Group of Davis is a 501(c)7 non-profit organization dedicated to the Linux computer operating system and other Open Source and Free Software. Since 1999, LUGOD has held regular meetings with guest speakers in Davis, California, as well as other events in Davis and the greater Sacramento region. Events are always free and open to the public. Please visit our website for more details: http://www.lugod.org/ -- Bill Kendrick pr at lugod.org Public Relations Officer Linux Users' Group of Davis http://www.lugod.org/ (Your address: sf-lug at linuxmafia.com ) From bliss-sf4ever at dslextreme.com Mon Jan 9 17:42:32 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 09 Jan 2012 17:42:32 -0800 Subject: [sf-lug] SF-LUG meets on Monday, January 16, 2012 Message-ID: <4F0B9788.5060108@dslextreme.com> SF-LUG on the Third Monday from 6-8 PM at the Cafe Enchante on Geary at 26th Avenue. All meeting times are nominal. Bring your problems and if no one in attendance can solve a problem we know where to find more help. Ken Schaeffer has promised to bring along his 8 inch not quite a tablet device, the Chumby. This is a Linux appliance and is made to receive Internet radio. But Ken has doen other stuff with it that makes it sound very interesting. I will have a couple of Linux magazines at least. Of course this is Martin Luther King, Jr. Day as well. Bring along your dreams. My dream is that Microsoft surrenders to Linux instead of resisting it with silly trick like the EFI. Cafe Enchante is at 6157 Geary Boulevard on the South East corner of Geary and 26th Avenue. (415) 251-9136 If you're coming by bus, take any of the Geary buses west, they run often. Here's a link to a map. http://maps.google.com/maps?hl=en&sugexp=ldymls&xhr=t&cp=17&bav=on.2,or.&um=1&ie=UTF-8&q=cafe+enchante+san+francisco&fb=1&gl=us&hq=cafe+enchante&hnear=San+Francisco,+CA&cid=0,0,9801631951036779628&ei=ldpuTf2SCIS4sAO54Im3Cw&sa=X&oi=local_result&ct=image&resnum=1&sqi=2&ved=0CBUQnwIwAA From Michael.Paoli at cal.berkeley.edu Tue Jan 10 10:27:23 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Tue, 10 Jan 2012 10:27:23 -0800 Subject: [sf-lug] BALUG Tu 2012-01-17: Grant Bowman[1] on Spreading Open Source in Nairobi, Kenya Message-ID: <20120110102723.12493onplg06ha0w@webmail.rawbw.com> BALUG Tu 2012-01-17: Grant Bowman[1] on Spreading Open Source in Nairobi, Kenya Bay Area Linux User Group (BALUG) meeting Tuesday 6:30 P.M. 2012-01-17 Please RSVP if you're planning to come (see further below). For our 2012-01-17 BALUG meeting, we're pleased to present: Grant Bowman[1] on Spreading Open Source in Nairobi, Kenya Mr. Bowman spent September, October and November 2011 working with young adult graduates of a technology school (Nairobits)[2] hosted by Dreamfish[3] CEO Dr. Tiffany von Emmel in Nairobi, Kenya thanks to the generous support of Dreamfish members and donors. Nairobi is one degree below the equator eleven time zones away just inland from the Eastern coast of Africa. Dreamfish is a global peer development network connecting entrepreneurs and individuals working together to realize their dreams. Dreamfish is co-owned by hundreds of women entrepreneurs, youth entrepreneurs and professionals in 26 countries. The Community Tech project's goal is to use open source to connect people working all over the world, from the Rift Valley to the Silicon Valley using web and mobile technologies. Primary PHP software packages being customized are status.net[4], wordpress.org[5] and more. Working five days a week the graduates were exposed to many ideas and topics including ica.coop[6], English language classes, revolution-os.com[7], laptop.org[8] (OLPC) / olpcsf.org[9] / give one get one, toms.com shoes one for one[10], ARRL[11], Wi-Fi and Ubuntu[12], Fedora Project[13], Android. Mr. Bowman used the ground breaking Safaricom M-PESA branchless banking system popular in Kenya, Tanzania & Afghanistan - M stands for mobile and pesa is Swahili for money. During his stay he, Tiffany and the graduates presented at Nairobits, introducing 47 students to open source software, user focused design (UX), web development infrastructure and the command line. Ubuntu Hour[14]s were held every other week at *iHub_Nairobi[15] helping the Ubuntu Kenya Local Community Team[16] become more active again with the support of Ubuntu California[17]. Mr. Bowman has been a consultant and Internet professional for over twenty years including a former Director of Silicon Valley Public Access Link (SV-PAL)[18] ISP serving Santa Clara County and a present Director of Partimus[19] serving San Francisco and Alameda County middle schools with recycled computers, open source software, training and support. He is an OLPC Developer, Ubuntu Member, Fedora Ambassador, Debian Developer and former employee of SUSE[20]. Active Habits[21] is a forthcoming Android app. He is also active with Berkely Linux Users Group[22], Berkeley Unix User Group (BUUG)[23], Noisebridge[24], San Francisco Linux Users' Group (SF-LUG)[25] and also Diablo Valley Linux Users Group (DVLUG)[26] (every Friday in Walnut Creek). His website is: http://www.grantbow.com/[27] 1. http://www.grantbow.com/ 2. http://nairobits.com/ 3. http://dreamfish.com/ 4. http://status.net/ 5. http://wordpress.org/ 6. http://www.ica.coop/ 7. http://www.revolution-os.com/ 8. http://one.laptop.org/ 9. http://olpcsf.org/ 10. http://www.toms.com/our-movement/movement-one-for-one 11. http://www.arrl.org/ 12. http://www.ubuntu.com/ 13. http://fedoraproject.org/ 14. https://wiki.ubuntu.com/Hour 15. http://ihub.co.ke/ 16. https://wiki.ubuntu.com/KenyanTeam 17. https://wiki.ubuntu.com/CaliforniaTeam 18. http://www.svpal.org/ 19. http://partimus.org/ 20. http://www.suse.com/ 21. http://www.activehabits.com/ 22. http://www.berkeleylug.com/ 23. http://www.buug.org/ 24. http://www.noisebridge.net/ 25. http://www.sf-lug.com/ 26. http://www.dvlug.org/ 27. http://www.grantbow.com/ So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, January 17th, 2012 2012-01-17 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue and helping to defray BALUG costs such treating our speakers to dinner). ------------------------------ CDs, etc.: Additional goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ Want to volunteer to help out BALUG? (quite a variety of opportunities exist) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From bliss-sf4ever at dslextreme.com Tue Jan 10 14:58:20 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Tue, 10 Jan 2012 14:58:20 -0800 Subject: [sf-lug] SF-LUG meets on Monday, January 16, 2012 In-Reply-To: <4F0B9788.5060108@dslextreme.com> References: <4F0B9788.5060108@dslextreme.com> Message-ID: <4F0CC28C.10905@dslextreme.com> On 01/09/2012 05:42 PM, Bobbie Sellers wrote: > SF-LUG on the Third Monday from 6-8 PM > at the Cafe Enchante on Geary at 26th Avenue. > All meeting times are nominal. > > Bring your problems and if no one in attendance > can solve a problem we know where to find more help. > > Ken Schaeffer has promised to bring along > his 8 inch not quite a tablet device, the Chumby. > This is a Linux appliance and is made to receive > Internet radio. But Ken has doen other stuff with > it that makes it sound very interesting. Sorry rechecking the note from Ken he will be in on the next meeting on Sunday. bliss > > I will have a couple of Linux magazines > at least. > > Of course this is Martin Luther King, Jr. Day > as well. Bring along your dreams. My dream is > that Microsoft surrenders to Linux instead of > resisting it with silly trick like the EFI. > > Cafe Enchante is at 6157 Geary Boulevard on the > South East corner of Geary and 26th Avenue. > (415) 251-9136 > If you're coming by bus, take any of the Geary > buses west, they run often. > > Here's a link to a map. > > http://maps.google.com/maps?hl=en&sugexp=ldymls&xhr=t&cp=17&bav=on.2,or.&um=1&ie=UTF-8&q=cafe+enchante+san+francisco&fb=1&gl=us&hq=cafe+enchante&hnear=San+Francisco,+CA&cid=0,0,9801631951036779628&ei=ldpuTf2SCIS4sAO54Im3Cw&sa=X&oi=local_result&ct=image&resnum=1&sqi=2&ved=0CBUQnwIwAA > > From jim at systemateka.com Wed Jan 11 11:35:23 2012 From: jim at systemateka.com (jim) Date: Wed, 11 Jan 2012 11:35:23 -0800 Subject: [sf-lug] linux discussion group at noisebridge this evening -- rumors of hot chocolate Message-ID: <1326310523.1663.67.camel@jim-LAPTOP> the linux discussion group meets each wednesday evening from 6 to 8 PM in the turing classroom in Noisebridge (2169 Mission near 18th Street: http://www.noisebridge.net). there is a rumor that tonight there may be hot chocolate served for those participating in the discussion. From sverma at sfsu.edu Fri Jan 13 10:50:21 2012 From: sverma at sfsu.edu (Sameer Verma) Date: Fri, 13 Jan 2012 10:50:21 -0800 Subject: [sf-lug] OLPC-SF Jan 14 meeting... Message-ID: Come one, come all! OLPC San Francisco Volunteer Community celebrates its 4th birthday! Apart from the usual updates and software installs and XO unbricking we'll have some cake and bubbly. Bring something to drink/eat if you'd like. 10AM to 2PM 835 Market St. #553 San Francisco, CA 94103 cheers, Sameer -- Sameer Verma, Ph.D. Professor, Information Systems San Francisco State University http://verma.sfsu.edu/ http://commons.sfsu.edu/ http://olpcsf.org/ From larry.cafiero at gmail.com Fri Jan 13 11:03:37 2012 From: larry.cafiero at gmail.com (Larry Cafiero) Date: Fri, 13 Jan 2012 11:03:37 -0800 Subject: [sf-lug] OLPC-SF Jan 14 meeting... In-Reply-To: References: Message-ID: Happy Birthday, OLPC SF!!! I can't make it to the meeting in SF on Saturday -- we have our own meeting at Felton LUG in Santa Cruz County -- but I wanted to remind folks that SCALE is coming up next weekend. The Southern California Linux Expo SCALE 10X will be held Jan. 20-22 at the Hilton Los Angeles Airport hotel. Of special interest to the OLPC crowd is a XO demos as part of "SCALE: The Next Generation" (a conference track by kids for kids). Prices range from $10 for an expo floor pass to $60 for the works, and the Hilton is having a special for SCALE attendees staying on-site -- the room rate is $109/night. For more info, visit http://www.socallinuxexpo.org Thanks, all! Larry Cafiero On Fri, Jan 13, 2012 at 10:50 AM, Sameer Verma wrote: > Come one, come all! OLPC San Francisco Volunteer Community celebrates > its 4th birthday! Apart from the usual updates and software installs > and XO unbricking we'll have some cake and bubbly. Bring something to > drink/eat if you'd like. > > 10AM to 2PM > 835 Market St. #553 > San Francisco, CA 94103 > > cheers, > Sameer > -- > Sameer Verma, Ph.D. > Professor, Information Systems > San Francisco State University > http://verma.sfsu.edu/ > http://commons.sfsu.edu/ > http://olpcsf.org/ > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From einfeldt at gmail.com Fri Jan 13 14:40:49 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 13 Jan 2012 14:40:49 -0800 Subject: [sf-lug] Pizza, manual labor and lab assessment at a Linux-using school Message-ID: Hi, Partimus volunteers are going to be working tomorrow, Saturday, 2011.1.14 at the Creative Arts Charter School, a public school that was burned recently in the 2011.12.22 fire. We are going to be moving computers. It is not glamorous work. The Creative Arts Charter School is located at the corner of Turk and Pierce in San Francisco. Please call Christian Einfeldt at 415-351-1300 when you arrive. There will be pizza at 2 pm We are also going to be assessing the floor plan for the GNU-Linux lab, which was moved to construction at the school. You can see a blog about the damage to the school here: http://blog.partimus.org/?p=159 You can see all of the pictures that I took today of fire damage here: http://is.gd/y40alm Here is the unshortened url for that album about the fire damage: https://plus.google.com/u/0/photos/116904638361799818523/albums/5697243431170261953 -------------- next part -------------- An HTML attachment was scrubbed... URL: From mmdmurphy at gmail.com Fri Jan 13 14:49:40 2012 From: mmdmurphy at gmail.com (Gmail) Date: Fri, 13 Jan 2012 14:49:40 -0800 Subject: [sf-lug] Pizza, manual labor and lab assessment at a Linux-using school In-Reply-To: References: Message-ID: I think you messed up the date in the first sentence....2012..... Sent from Dan's iPad On Jan 13, 2012, at 2:40 PM, Christian Einfeldt wrote: > Hi, > > Partimus volunteers are going to be working tomorrow, Saturday, 2011.1.14 at the Creative Arts Charter School, a public school that was burned recently in the 2011.12.22 fire. We are going to be moving computers. It is not glamorous work. > > The Creative Arts Charter School is located at the corner of Turk and Pierce in San Francisco. Please call Christian Einfeldt at 415-351-1300 when you arrive. There will be pizza at 2 pm > > We are also going to be assessing the floor plan for the GNU-Linux lab, which was moved to construction at the school. You can see a blog about the damage to the school here: > > http://blog.partimus.org/?p=159 > > You can see all of the pictures that I took today of fire damage here: > > http://is.gd/y40alm > > Here is the unshortened url for that album about the fire damage: > > https://plus.google.com/u/0/photos/116904638361799818523/albums/5697243431170261953 > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Fri Jan 13 14:57:05 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 13 Jan 2012 14:57:05 -0800 Subject: [sf-lug] Pizza, manual labor and lab assessment at a Linux-using school In-Reply-To: References: Message-ID: hi, Correcting a typo, the date that we will be working at the school is tomorrow, 2012.1.14. On Fri, Jan 13, 2012 at 2:40 PM, Christian Einfeldt wrote: > Hi, > > Partimus volunteers are going to be working tomorrow, Saturday, 2011.1.14 > at the Creative Arts Charter School, a public school that was burned > recently in the 2011.12.22 fire. We are going to be moving computers. It > is not glamorous work. > > The Creative Arts Charter School is located at the corner of Turk and > Pierce in San Francisco. Please call Christian Einfeldt at 415-351-1300when you arrive. There will be pizza at 2 pm > > We are also going to be assessing the floor plan for the GNU-Linux lab, > which was moved to construction at the school. You can see a blog about > the damage to the school here: > > http://blog.partimus.org/?p=159 > > You can see all of the pictures that I took today of fire damage here: > > http://is.gd/y40alm > > Here is the unshortened url for that album about the fire damage: > > > https://plus.google.com/u/0/photos/116904638361799818523/albums/5697243431170261953 > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Fri Jan 13 17:01:30 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 13 Jan 2012 17:01:30 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 Message-ID: hi, I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor to it. The monitor is very new. No signs of damage to the monitor. It was new in its box, but I got it as a gift from someone else. When I hook up the VGA cable and the USB cable to the 10.04 box, the monitor shows its usual splash screen, and then shows the Dell self test feature check, which performs normally, displaying a red, green, blue and white test box on the screen, but it otherwise does not work with any Ubuntu machine. Any suggestions welcome. -------------- next part -------------- An HTML attachment was scrubbed... URL: From ehud.kaldor at gmail.com Fri Jan 13 17:07:17 2012 From: ehud.kaldor at gmail.com (Ehud Kaldor) Date: Fri, 13 Jan 2012 17:07:17 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: Laptop or desktop? In other words - first or second monitor? On Jan 13, 2012 5:04 PM, "Christian Einfeldt" wrote: > hi, > > I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor > to it. The monitor is very new. No signs of damage to the monitor. It > was new in its box, but I got it as a gift from someone else. When I hook > up the VGA cable and the USB cable to the 10.04 box, the monitor shows its > usual splash screen, and then shows the Dell self test feature check, which > performs normally, displaying a red, green, blue and white test box on the > screen, but it otherwise does not work with any Ubuntu machine. Any > suggestions welcome. > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Fri Jan 13 17:09:49 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 13 Jan 2012 17:09:49 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: Hi, On Fri, Jan 13, 2012 at 5:07 PM, Ehud Kaldor wrote: > Laptop or desktop? In other words - first or second monitor? > This is a desktop. I have tested the monitor with 3 separate Ubuntu Linux machines. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jasonstone at gmail.com Fri Jan 13 17:11:37 2012 From: jasonstone at gmail.com (jason stone) Date: Fri, 13 Jan 2012 17:11:37 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: The 2001fp can take dvi & VGA. There is a button on the bezel to switch the input. Have you tried that yet? Sent from my iPhone On Jan 13, 2012, at 5:01 PM, Christian Einfeldt wrote: > hi, > > I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor to it. The monitor is very new. No signs of damage to the monitor. It was new in its box, but I got it as a gift from someone else. When I hook up the VGA cable and the USB cable to the 10.04 box, the monitor shows its usual splash screen, and then shows the Dell self test feature check, which performs normally, displaying a red, green, blue and white test box on the screen, but it otherwise does not work with any Ubuntu machine. Any suggestions welcome. > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From kenshaffer80 at gmail.com Sat Jan 14 09:11:31 2012 From: kenshaffer80 at gmail.com (Ken Shaffer) Date: Sat, 14 Jan 2012 09:11:31 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: Try a different cable too. Ken On Fri, Jan 13, 2012 at 5:11 PM, jason stone wrote: > The 2001fp can take dvi & VGA. There is a button on the bezel to switch > the input. Have you tried that yet? > > Sent from my iPhone > > On Jan 13, 2012, at 5:01 PM, Christian Einfeldt > wrote: > > > hi, > > > > I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor > to it. The monitor is very new. No signs of damage to the monitor. It > was new in its box, but I got it as a gift from someone else. When I hook > up the VGA cable and the USB cable to the 10.04 box, the monitor shows its > usual splash screen, and then shows the Dell self test feature check, which > performs normally, displaying a red, green, blue and white test box on the > screen, but it otherwise does not work with any Ubuntu machine. Any > suggestions welcome. > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From akkana at shallowsky.com Sat Jan 14 10:22:24 2012 From: akkana at shallowsky.com (Akkana Peck) Date: Sat, 14 Jan 2012 10:22:24 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: <20120114182224.GA2165@shallowsky.com> Christian Einfeldt writes: > I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor to Does xrandr say anything? It should be able to query the video input and report the resolution of anything plugged in. Unfortunately it doesn't report any other details about the monitor, but if it sees 1600 x 1200 that tells you something. You've tried more than one cable, right? Or a cable that works with another monitor on the same PC? ...Akkana From einfeldt at gmail.com Sat Jan 14 11:17:41 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Sat, 14 Jan 2012 11:17:41 -0800 Subject: [sf-lug] Dell 2001FP monitor not working with Ubuntu 10.04 In-Reply-To: References: Message-ID: Jason' suggestion worked! Thx to all who replied! On Jan 13, 2012 5:11 PM, "jason stone" wrote: > The 2001fp can take dvi & VGA. There is a button on the bezel to switch > the input. Have you tried that yet? > > Sent from my iPhone > > On Jan 13, 2012, at 5:01 PM, Christian Einfeldt > wrote: > > > hi, > > > > I am running Ubuntu 10.04. I am trying to hook up a Dell 2001FP monitor > to it. The monitor is very new. No signs of damage to the monitor. It > was new in its box, but I got it as a gift from someone else. When I hook > up the VGA cable and the USB cable to the 10.04 box, the monitor shows its > usual splash screen, and then shows the Dell self test feature check, which > performs normally, displaying a red, green, blue and white test box on the > screen, but it otherwise does not work with any Ubuntu machine. Any > suggestions welcome. > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Sat Jan 14 13:06:48 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Sat, 14 Jan 2012 13:06:48 -0800 Subject: [sf-lug] Pizza, manual labor and lab assessment at a Linux-using school In-Reply-To: References: Message-ID: Hi, We have finished work early today! Here is a blog entry about today's work: http://blog.partimus.org/?p=171 We figured that all of our volunteers would have arrived by now, so we are breaking up and calling it a day. On Fri, Jan 13, 2012 at 2:40 PM, Christian Einfeldt wrote: > Hi, > > Partimus volunteers are going to be working tomorrow, Saturday, 2011.1.14 > at the Creative Arts Charter School, a public school that was burned > recently in the 2011.12.22 fire. We are going to be moving computers. It > is not glamorous work. > > The Creative Arts Charter School is located at the corner of Turk and > Pierce in San Francisco. Please call Christian Einfeldt at 415-351-1300when you arrive. There will be pizza at 2 pm > > We are also going to be assessing the floor plan for the GNU-Linux lab, > which was moved to construction at the school. You can see a blog about > the damage to the school here: > > http://blog.partimus.org/?p=159 > > You can see all of the pictures that I took today of fire damage here: > > http://is.gd/y40alm > > Here is the unshortened url for that album about the fire damage: > > > https://plus.google.com/u/0/photos/116904638361799818523/albums/5697243431170261953 > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From anth1y at gmail.com Sat Jan 14 14:36:49 2012 From: anth1y at gmail.com (Anthony Riley) Date: Sat, 14 Jan 2012 14:36:49 -0800 Subject: [sf-lug] LAMP tutorial Message-ID: Please Help, I cant seem to find a good lamp tutorial that doesn't include phpmyadmin... any pointers or tutorials would be super helpful. added bonus would be one with python in lieu of php Any guidance would be much appreciated, Thanks Anthony -- Anthony Riley II (415)407.9687 Linux user #521929 http://counter.li.org/! -------------- next part -------------- An HTML attachment was scrubbed... URL: From kellankade at gmail.com Sat Jan 14 14:45:14 2012 From: kellankade at gmail.com (Daniel Nowak) Date: Sat, 14 Jan 2012 14:45:14 -0800 Subject: [sf-lug] LAMP tutorial In-Reply-To: References: Message-ID: <20653C6B-EF75-45C2-A3D1-0A8854BAAB16@gmail.com> If your looking to get them setup. Check our http://library.linode.com/lamp-guides Also I think ubuntu server help has a pretty good LAMP install step by step. If you want python they have a second called LEMP guides, which does the same thing but with nginx and python. If you want Apache and python then after you install Apache just install the module mod_wsgi. Daniel On Jan 14, 2012, at 2:36 PM, Anthony Riley wrote: > Please Help, > I cant seem to find a good lamp tutorial that doesn't include phpmyadmin... any pointers or tutorials would be super helpful. added bonus would be one with python in lieu of php > > Any guidance would be much appreciated, > Thanks > Anthony > -- > Anthony Riley II > (415)407.9687 > Linux user #521929 > http://counter.li.org/! > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From anth1y at gmail.com Sat Jan 14 14:49:13 2012 From: anth1y at gmail.com (Anthony Riley) Date: Sat, 14 Jan 2012 14:49:13 -0800 Subject: [sf-lug] LAMP tutorial In-Reply-To: <20653C6B-EF75-45C2-A3D1-0A8854BAAB16@gmail.com> References: <20653C6B-EF75-45C2-A3D1-0A8854BAAB16@gmail.com> Message-ID: Thanks I'll check out both much appreciated. Anthony On Sat, Jan 14, 2012 at 2:45 PM, Daniel Nowak wrote: > If your looking to get them setup. Check our > http://library.linode.com/lamp-guides Also I think ubuntu server help has > a pretty good LAMP install step by step. > > If you want python they have a second called LEMP guides, which does the > same thing but with nginx and python. > > If you want Apache and python then after you install Apache just install > the module mod_wsgi. > > Daniel > > > On Jan 14, 2012, at 2:36 PM, Anthony Riley wrote: > > Please Help, > I cant seem to find a good lamp tutorial that doesn't include > phpmyadmin... any pointers or tutorials would be super helpful. added bonus > would be one with python in lieu of php > > Any guidance would be much appreciated, > Thanks > Anthony > -- > Anthony Riley II > (415)407.9687 > Linux user #521929 > http://counter.li.org/! > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > > > -- Anthony Riley II (415)407.9687 Linux user #521929 http://counter.li.org/! -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at well.com Sat Jan 14 15:00:47 2012 From: jim at well.com (jim) Date: Sat, 14 Jan 2012 15:00:47 -0800 Subject: [sf-lug] LAMP tutorial In-Reply-To: References: Message-ID: <1326582047.1706.40.camel@jim-LAPTOP> L...inux A...pache M...ySql P... I believe originally meant PHP, but that meaning has been forgiven a bit to mean something like "P languages", which some people limit to PHP or Perl. Python, despite its importance in Linux configuration, seems neglected in web application work, at least as I've found. Seems to me that a lot of LAMP prowess has to do with configuring and tuning the linux kernel and a variety of libs and mods and such, which is a lot. And configuring Apache seems to be a whole career. And database design is probably two or three careers. And programming.... There are Python frameworks and such along the lines of Django WSGI CubicWeb Pylons ... http://docs.python.org/howto/webservers.html I'd like to know of a python tool or framework or whatever that someone loves a lot. On Sat, 2012-01-14 at 14:36 -0800, Anthony Riley wrote: > Please Help, > I cant seem to find a good lamp tutorial that doesn't include > phpmyadmin... any pointers or tutorials would be super helpful. added > bonus would be one with python in lieu of php > > > Any guidance would be much appreciated, > Thanks > Anthony > -- > Anthony Riley II > (415)407.9687 > Linux user #521929 > http://counter.li.org/! > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From Michael.Paoli at cal.berkeley.edu Mon Jan 16 08:16:43 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 16 Jan 2012 08:16:43 -0800 Subject: [sf-lug] BALUG TOMORROW! Tu 17th: Grant Bowman on Spreading Open Source in Nairobi, Kenya Message-ID: <20120116081643.20026z64k9u1rrk8@webmail.rawbw.com> BALUG TOMORROW! Tu 17th: Grant Bowman on Spreading Open Source in Nairobi, Kenya Reminder - BALUG tomorrow! Tu 2012-01-17 Don't forget, and don't miss out! Bay Area Linux User Group (BALUG) meeting Tuesday 6:30 P.M. 2012-01-17 Please RSVP if you're planning to come (see further below). For our 2012-01-17 BALUG meeting, we're pleased to present: Grant Bowman[1] on Spreading Open Source in Nairobi, Kenya Mr. Bowman spent September, October and November 2011 working with young adult graduates of a technology school (Nairobits)[2] hosted by Dreamfish[3] CEO Dr. Tiffany von Emmel in Nairobi, Kenya thanks to the generous support of Dreamfish members and donors. Nairobi is one degree below the equator eleven time zones away just inland from the Eastern coast of Africa. Dreamfish is a global peer development network connecting entrepreneurs and individuals working together to realize their dreams. Dreamfish is co-owned by hundreds of women entrepreneurs, youth entrepreneurs and professionals in 26 countries. The Community Tech project's goal is to use open source to connect people working all over the world, from the Rift Valley to the Silicon Valley using web and mobile technologies. Primary PHP software packages being customized are status.net[4], wordpress.org[5] and more. Working five days a week the graduates were exposed to many ideas and topics including ica.coop[6], English language classes, revolution-os.com[7], laptop.org[8] (OLPC) / olpcsf.org[9] / give one get one, toms.com shoes one for one[10], ARRL[11], Wi-Fi and Ubuntu[12], Fedora Project[13], Android. Mr. Bowman used the ground breaking Safaricom M-PESA branchless banking system popular in Kenya, Tanzania & Afghanistan - M stands for mobile and pesa is Swahili for money. During his stay he, Tiffany and the graduates presented at Nairobits, introducing 47 students to open source software, user focused design (UX), web development infrastructure and the command line. Ubuntu Hour[14]s were held every other week at *iHub_Nairobi[15] helping the Ubuntu Kenya Local Community Team[16] become more active again with the support of Ubuntu California[17]. Mr. Bowman has been a consultant and Internet professional for over twenty years including a former Director of Silicon Valley Public Access Link (SV-PAL)[18] ISP serving Santa Clara County and a present Director of Partimus[19] serving San Francisco and Alameda County middle schools with recycled computers, open source software, training and support. He is an OLPC Developer, Ubuntu Member, Fedora Ambassador, Debian Developer and former employee of SUSE[20]. Active Habits[21] is a forthcoming Android app. He is also active with Berkely Linux Users Group[22], Berkeley Unix User Group (BUUG)[23], Noisebridge[24], San Francisco Linux Users' Group (SF-LUG)[25] and also Diablo Valley Linux Users Group (DVLUG)[26] (every Friday in Walnut Creek). His website is: http://www.grantbow.com/[27] 1. http://www.grantbow.com/ 2. http://nairobits.com/ 3. http://dreamfish.com/ 4. http://status.net/ 5. http://wordpress.org/ 6. http://www.ica.coop/ 7. http://www.revolution-os.com/ 8. http://one.laptop.org/ 9. http://olpcsf.org/ 10. http://www.toms.com/our-movement/movement-one-for-one 11. http://www.arrl.org/ 12. http://www.ubuntu.com/ 13. http://fedoraproject.org/ 14. https://wiki.ubuntu.com/Hour 15. http://ihub.co.ke/ 16. https://wiki.ubuntu.com/KenyanTeam 17. https://wiki.ubuntu.com/CaliforniaTeam 18. http://www.svpal.org/ 19. http://partimus.org/ 20. http://www.suse.com/ 21. http://www.activehabits.com/ 22. http://www.berkeleylug.com/ 23. http://www.buug.org/ 24. http://www.noisebridge.net/ 25. http://www.sf-lug.com/ 26. http://www.dvlug.org/ 27. http://www.grantbow.com/ So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, January 17th, 2012 2012-01-17 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue and helping to defray BALUG costs such treating our speakers to dinner). ------------------------------ CDs, etc.: Additional goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ Want to volunteer to help out BALUG? (quite a variety of opportunities exist) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From jim at systemateka.com Mon Jan 16 16:42:49 2012 From: jim at systemateka.com (jim) Date: Mon, 16 Jan 2012 16:42:49 -0800 Subject: [sf-lug] I'll be a little bit late for this evening's meeting Message-ID: <1326760969.9894.123.camel@jim-LAPTOP> I've got to meet a guy at 5 PM; don't know how long it will take, maybe I'll show up a little bit after 6 PM tonight (Cafe Enchante on Geary at 26th). From sverma at sfsu.edu Mon Jan 16 22:56:07 2012 From: sverma at sfsu.edu (Sameer Verma) Date: Mon, 16 Jan 2012 22:56:07 -0800 Subject: [sf-lug] OLPCSF and SFSU sign a memo of understanding In-Reply-To: <1326060612.14691.34.camel@jim-LAPTOP> References: <1326060612.14691.34.camel@jim-LAPTOP> Message-ID: On Sun, Jan 8, 2012 at 2:10 PM, jim wrote: > > as seen on the DVLUG mailing list: > > " For those of you not on the olpc-sf email list yet. :-) > I'm reallypleased about this and am proud to be a part of > http://olpcsf.org > thatmeets monthly in SF, easily accessible from the > Powell St. BARTstation & Westfield Shopping Center. > > The next meeting is Sat, Jan 14th from 10 AM - 2PM. > > Grant " > > -------------------- > > ? ?Sameer Verma is a professor at SFSU and has championed > the "little green PC", i.e. the XO laptop product that is > managed by the One Laptop Per Child effort ( http://one.laptop.org/ ) > > ? ?The OLPCSF group has a number of members who are > championing the XO laptop both locally and in various > regions around the world ( http://olpcsf.org/projects ). > > ? ?Here's a link to the OLPC site page for efforts in > the SF bay area: http://wiki.laptop.org/go/OLPC_SanFranciscoBayArea > > ? ?Here's a link to join the OLPCSF mailing list: > http://lists.laptop.org/listinfo/olpc-sf > > > ? ?There are rumors of a new XO that may be released in > tablet form factor. I'll probably catch hell for promoting > a rumor. > Rumor no more :-) http://blog.laptop.org/2012/01/09/xo-3-press-roundup/ More interesting (to me) is the ARM-powered 1.75 laptop. http://blog.laptop.org/2012/01/10/an-xo-1-75-running-directly-off-a-solar-panel-video/ cheers, Sameer From jbpuig at sbcglobal.net Wed Jan 18 07:57:58 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 18 Jan 2012 07:57:58 -0800 (PST) Subject: [sf-lug] Meeting Reminder - Linux Discussion at Noisebridge Message-ID: <1326902278.57457.YahooMailRC@web83809.mail.sp1.yahoo.com> The Noisebridge Linux Discussion meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From rick at linuxmafia.com Wed Jan 18 22:32:00 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 18 Jan 2012 22:32:00 -0800 Subject: [sf-lug] (forw) SF-LUG pages Message-ID: <20120119063200.GA30827@linuxmafia.com> Forwarding to a wider audience, as y'all still ought to fix it. ----- Forwarded message from Rick Moen ----- Date: Tue, 5 Jul 2011 01:12:27 -0700 From: Rick Moen To: Jim Stockford Subject: SF-LUG pages Organization: If you lived here, you'd be $HOME already. Hi, Jim. I notice that http://www.sf-lug.org/ no longer serves up the site 'index.html' page, but rather an HTTPd-generated index page. I am unclear on precisely what changed, but suspect you should figure that out and fix it. Otherwise, people are not going to easily find the front page, currently visible only if you go specifically to: http://www.sf-lug.org/index.html (If you have time, you might want to update what the 'next' meetings are. I'm very sympathetic to the problem of deferred maintenance.) ----- End forwarded message ----- From jim at systemateka.com Thu Jan 19 07:20:59 2012 From: jim at systemateka.com (jim) Date: Thu, 19 Jan 2012 07:20:59 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: <20120119063200.GA30827@linuxmafia.com> References: <20120119063200.GA30827@linuxmafia.com> Message-ID: <1326986459.1725.73.camel@jim-LAPTOP> Thank you, Rick. On Wed, 2012-01-18 at 22:32 -0800, Rick Moen wrote: > Forwarding to a wider audience, as y'all still ought to fix it. > > ----- Forwarded message from Rick Moen ----- > > Date: Tue, 5 Jul 2011 01:12:27 -0700 > From: Rick Moen > To: Jim Stockford > Subject: SF-LUG pages > Organization: If you lived here, you'd be $HOME already. > > Hi, Jim. I notice that http://www.sf-lug.org/ no longer serves up the > site 'index.html' page, but rather an HTTPd-generated index page. > I am unclear on precisely what changed, but suspect you should figure > that out and fix it. Otherwise, people are not going to easily find the > front page, currently visible only if you go specifically to: > > http://www.sf-lug.org/index.html > > (If you have time, you might want to update what the 'next' meetings > are. I'm very sympathetic to the problem of deferred maintenance.) > > > > ----- End forwarded message ----- > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From kenshaffer80 at gmail.com Thu Jan 19 16:21:25 2012 From: kenshaffer80 at gmail.com (Ken Shaffer) Date: Thu, 19 Jan 2012 16:21:25 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: <1326986459.1725.73.camel@jim-LAPTOP> References: <20120119063200.GA30827@linuxmafia.com> <1326986459.1725.73.camel@jim-LAPTOP> Message-ID: Hi Jim, Here's a little script to generate the meetings for a year in your existing format: $ cat sflug-meetings.sh #!/bin/bash # SF Linux User Group Meetings on the first Sunday # and third Monday of the month. # Optional parameter is the four digit year # # Constants for date's day of week MONDAY=1 SUNDAY=7 # Initialize counters for days and months, and day counters MON=1 DAY=1 # Targets for meetings, first Sunday and third Monday of a month # Algorithm only valid up to the third occurrence of any day FIRSTSUN=1 THIRDMON=3 NTHSUN=$FIRSTSUN NTHMON=$THIRDMON # Current year will be used if no input parameter CURRENTYR=`date "+%Y"` YEAR=${1:-$CURRENTYR} # loop though all months, and sufficient days to get to third Monday while [ "$MON" -le 12 ] ; do # Use 28 to allow up the the fourth occurrence of any day while [ $DAY -le 21 ] ; do TST=`date '+%u' -d "$MON/$DAY/$YEAR"` if [ $NTHSUN -ge 1 -a $TST -eq $SUNDAY ]; then NTHSUN=`expr $NTHSUN - 1 ` echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 11:00AM till 1:00PM" fi if [ $NTHMON -ge 1 -a $TST -eq $MONDAY ]; then NTHMON=`expr $NTHMON - 1 ` if [ $NTHMON -eq 0 ]; then echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 6:00PM till 8:00PM" fi fi DAY=`expr $DAY + 1 ` done DAY=1 MON=`expr $MON + 1 ` NTHSUN=$FIRSTSUN NTHMON=$THIRDMON done $ ./sflug-meetings.sh Sunday, January 1, 2012, from 11:00AM till 1:00PM Monday, January 16, 2012, from 6:00PM till 8:00PM Sunday, February 5, 2012, from 11:00AM till 1:00PM Monday, February 20, 2012, from 6:00PM till 8:00PM Sunday, March 4, 2012, from 11:00AM till 1:00PM Monday, March 19, 2012, from 6:00PM till 8:00PM Sunday, April 1, 2012, from 11:00AM till 1:00PM Monday, April 16, 2012, from 6:00PM till 8:00PM Sunday, May 6, 2012, from 11:00AM till 1:00PM Monday, May 21, 2012, from 6:00PM till 8:00PM Sunday, June 3, 2012, from 11:00AM till 1:00PM Monday, June 18, 2012, from 6:00PM till 8:00PM Sunday, July 1, 2012, from 11:00AM till 1:00PM Monday, July 16, 2012, from 6:00PM till 8:00PM Sunday, August 5, 2012, from 11:00AM till 1:00PM Monday, August 20, 2012, from 6:00PM till 8:00PM Sunday, September 2, 2012, from 11:00AM till 1:00PM Monday, September 17, 2012, from 6:00PM till 8:00PM Sunday, October 7, 2012, from 11:00AM till 1:00PM Monday, October 15, 2012, from 6:00PM till 8:00PM Sunday, November 4, 2012, from 11:00AM till 1:00PM Monday, November 19, 2012, from 6:00PM till 8:00PM Sunday, December 2, 2012, from 11:00AM till 1:00PM Monday, December 17, 2012, from 6:00PM till 8:00PM Ken On Thu, Jan 19, 2012 at 7:20 AM, jim wrote: > > > Thank you, Rick. > > > On Wed, 2012-01-18 at 22:32 -0800, Rick Moen wrote: > > Forwarding to a wider audience, as y'all still ought to fix it. > > > > ----- Forwarded message from Rick Moen ----- > > > > Date: Tue, 5 Jul 2011 01:12:27 -0700 > > From: Rick Moen > > To: Jim Stockford > > Subject: SF-LUG pages > > Organization: If you lived here, you'd be $HOME already. > > > > Hi, Jim. I notice that http://www.sf-lug.org/ no longer serves up the > > site 'index.html' page, but rather an HTTPd-generated index page. > > I am unclear on precisely what changed, but suspect you should figure > > that out and fix it. Otherwise, people are not going to easily find the > > front page, currently visible only if you go specifically to: > > > > http://www.sf-lug.org/index.html > > > > (If you have time, you might want to update what the 'next' meetings > > are. I'm very sympathetic to the problem of deferred maintenance.) > > > > > > > > ----- End forwarded message ----- > > > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at systemateka.com Thu Jan 19 16:30:57 2012 From: jim at systemateka.com (jim) Date: Thu, 19 Jan 2012 16:30:57 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: References: <20120119063200.GA30827@linuxmafia.com> <1326986459.1725.73.camel@jim-LAPTOP> Message-ID: <1327019457.1725.154.camel@jim-LAPTOP> You're wonderful, Ken. Thanks lots. I love the script. I guess I'll have to move the sf-lug.org web site to a new host and repoint the domain name. The current host system is not under my control. On Thu, 2012-01-19 at 16:21 -0800, Ken Shaffer wrote: > Hi Jim, > Here's a little script to generate the meetings for a year in your > existing format: > $ cat sflug-meetings.sh > #!/bin/bash > # SF Linux User Group Meetings on the first Sunday > # and third Monday of the month. > # Optional parameter is the four digit year > # > # Constants for date's day of week > MONDAY=1 > SUNDAY=7 > # Initialize counters for days and months, and day counters > MON=1 > DAY=1 > # Targets for meetings, first Sunday and third Monday of a month > # Algorithm only valid up to the third occurrence of any day > FIRSTSUN=1 > THIRDMON=3 > NTHSUN=$FIRSTSUN > NTHMON=$THIRDMON > # Current year will be used if no input parameter > CURRENTYR=`date "+%Y"` > YEAR=${1:-$CURRENTYR} > > # loop though all months, and sufficient days to get to third Monday > while [ "$MON" -le 12 ] ; do > # Use 28 to allow up the the fourth occurrence of any day > while [ $DAY -le 21 ] ; do > TST=`date '+%u' -d "$MON/$DAY/$YEAR"` > if [ $NTHSUN -ge 1 -a $TST -eq $SUNDAY ]; then > NTHSUN=`expr $NTHSUN - 1 ` > echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 11:00AM > till 1:00PM" > fi > if [ $NTHMON -ge 1 -a $TST -eq $MONDAY ]; then > NTHMON=`expr $NTHMON - 1 ` > if [ $NTHMON -eq 0 ]; then > echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 6:00PM > till 8:00PM" > fi > fi > DAY=`expr $DAY + 1 ` > done > DAY=1 > MON=`expr $MON + 1 ` > NTHSUN=$FIRSTSUN > NTHMON=$THIRDMON > done > > $ ./sflug-meetings.sh > Sunday, January 1, 2012, from 11:00AM till 1:00PM > Monday, January 16, 2012, from 6:00PM till 8:00PM > Sunday, February 5, 2012, from 11:00AM till 1:00PM > Monday, February 20, 2012, from 6:00PM till 8:00PM > Sunday, March 4, 2012, from 11:00AM till 1:00PM > Monday, March 19, 2012, from 6:00PM till 8:00PM > Sunday, April 1, 2012, from 11:00AM till 1:00PM > Monday, April 16, 2012, from 6:00PM till 8:00PM > Sunday, May 6, 2012, from 11:00AM till 1:00PM > Monday, May 21, 2012, from 6:00PM till 8:00PM > Sunday, June 3, 2012, from 11:00AM till 1:00PM > Monday, June 18, 2012, from 6:00PM till 8:00PM > Sunday, July 1, 2012, from 11:00AM till 1:00PM > Monday, July 16, 2012, from 6:00PM till 8:00PM > Sunday, August 5, 2012, from 11:00AM till 1:00PM > Monday, August 20, 2012, from 6:00PM till 8:00PM > Sunday, September 2, 2012, from 11:00AM till 1:00PM > Monday, September 17, 2012, from 6:00PM till 8:00PM > Sunday, October 7, 2012, from 11:00AM till 1:00PM > Monday, October 15, 2012, from 6:00PM till 8:00PM > Sunday, November 4, 2012, from 11:00AM till 1:00PM > Monday, November 19, 2012, from 6:00PM till 8:00PM > Sunday, December 2, 2012, from 11:00AM till 1:00PM > Monday, December 17, 2012, from 6:00PM till 8:00PM > > Ken > > On Thu, Jan 19, 2012 at 7:20 AM, jim wrote: > > > Thank you, Rick. > > > > On Wed, 2012-01-18 at 22:32 -0800, Rick Moen wrote: > > Forwarding to a wider audience, as y'all still ought to fix > it. > > > > ----- Forwarded message from Rick Moen > ----- > > > > Date: Tue, 5 Jul 2011 01:12:27 -0700 > > From: Rick Moen > > To: Jim Stockford > > Subject: SF-LUG pages > > Organization: If you lived here, you'd be $HOME already. > > > > Hi, Jim. I notice that http://www.sf-lug.org/ no longer > serves up the > > site 'index.html' page, but rather an HTTPd-generated index > page. > > I am unclear on precisely what changed, but suspect you > should figure > > that out and fix it. Otherwise, people are not going to > easily find the > > front page, currently visible only if you go specifically > to: > > > > http://www.sf-lug.org/index.html > > > > (If you have time, you might want to update what the 'next' > meetings > > are. I'm very sympathetic to the problem of deferred > maintenance.) > > > > > > > > ----- End forwarded message ----- > > > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > > From rick at linuxmafia.com Thu Jan 19 17:11:18 2012 From: rick at linuxmafia.com (Rick Moen) Date: Thu, 19 Jan 2012 17:11:18 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: <1327019457.1725.154.camel@jim-LAPTOP> References: <20120119063200.GA30827@linuxmafia.com> <1326986459.1725.73.camel@jim-LAPTOP> <1327019457.1725.154.camel@jim-LAPTOP> Message-ID: <20120120011118.GG26383@linuxmafia.com> Quoting jim (jim at systemateka.com): > I guess I'll have to move the sf-lug.org web > site to a new host and repoint the domain name. > The current host system is not under my control. Sorry to hear about that. It's a bit of a pain in the neck, when that happens. Let's see where hte autoritative DNS is: $ whois sf-lug.org | grep 'Name Server' Name Server:NS41.WORLDNIC.COM Name Server:NS42.WORLDNIC.COM Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: Name Server: $ POINT1: Whoever controls the LUG's domain has elected to have only two nameservers. This is a serious mistake. It makes your domain fragile. RFC recommendation is minimum 3, maximum 7 authoritative nameservers. POINT2: It's disapointing that SF-LUG has completely outsourced DNS and isn't even running its master nameserver. It's not difficult, and I can handhold you to get you going. Let's check where the master serivce is, and verify that the two servers are at least serving the same zonefile S/N: $ dig -t soa sf-lug.org. @NS41.WORLDNIC.COM. +short NS41.WORLDNIC.COM. namehost.WORLDNIC.COM. 111062022 10800 3600 604800 3600 $ dig -t soa sf-lug.org. @NS42.WORLDNIC.COM. +short NS41.WORLDNIC.COM. namehost.WORLDNIC.COM. 111062022 10800 3600 604800 3600 $ Good: They are serving the same S/N (sufficient proof that they're providing the same version of the data), and the master copy's claimed to be the one at NS41.WORLDNIC.COM. POINT3: Contact names/mailboxes in sf-lug.org's public domain records are a total train wreck -- completely broken. The public 'whois' records are the official method for reaching domain officials and owners, e.g., to say 'Dude, your DNS is broken' or many other things -- including warning notices about upcoming domain expirations. The sf-lug.org domain is (wisely) registered out to the middle of next year, so it's not going to expire soon, but it's a very bad idea for lots of other reasons to have your public contact information be broken. Public points of contact are: Registrant, Admin Contact, Technical Contact. SF-LUG's domain data _fail_ to specify a named person for any of those roles, and (worse) shows 'no.valid.email at worldnic.com' as the contact mailbox for all three roles. These are serious problems. FYI, I continue to offer SF-LUG and similar groups slave (secondary) DNS nameservice at two highly reliable nameservers over which I have administrative control: NS1.LINUXMAFIA.COM IP address 198.144.195.186 NS1.SVLUG.ORG IP address 64.62.190.98 Groups wishing to take up that offer should make sure my IPs are permitted to do AXFR/IXFR zone transfer requests of your zone(s), then tell me you'd like me to do slave nameservice (and for what zones, served by what master nameserver IPs). I will let you know when that's set up and tested, and you _then_ add my nameservers to the authoritative list in your domain, plus add 'NS' lines pointing to them in your zonefile. (Don't try to do the above in a different order, or you may break your DNS and waste your time.) From grantbow at ubuntu.com Thu Jan 19 17:17:56 2012 From: grantbow at ubuntu.com (Grant Bowman) Date: Thu, 19 Jan 2012 17:17:56 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: <1327019457.1725.154.camel@jim-LAPTOP> References: <20120119063200.GA30827@linuxmafia.com> <1326986459.1725.73.camel@jim-LAPTOP> <1327019457.1725.154.camel@jim-LAPTOP> Message-ID: Great script Ken! I have been giving out sf-lug.com for awhile to avoid broken pages. I hope this gets fixed for good. If promotion is a goal of the site it gives a very, very bad impression to outsiders. Grant On Jan 19, 2012 4:41 PM, "jim" wrote: > > > You're wonderful, Ken. Thanks lots. I love > the script. > I guess I'll have to move the sf-lug.org web > site to a new host and repoint the domain name. > The current host system is not under my control. > > > > > On Thu, 2012-01-19 at 16:21 -0800, Ken Shaffer wrote: > > Hi Jim, > > Here's a little script to generate the meetings for a year in your > > existing format: > > $ cat sflug-meetings.sh > > #!/bin/bash > > # SF Linux User Group Meetings on the first Sunday > > # and third Monday of the month. > > # Optional parameter is the four digit year > > # > > # Constants for date's day of week > > MONDAY=1 > > SUNDAY=7 > > # Initialize counters for days and months, and day counters > > MON=1 > > DAY=1 > > # Targets for meetings, first Sunday and third Monday of a month > > # Algorithm only valid up to the third occurrence of any day > > FIRSTSUN=1 > > THIRDMON=3 > > NTHSUN=$FIRSTSUN > > NTHMON=$THIRDMON > > # Current year will be used if no input parameter > > CURRENTYR=`date "+%Y"` > > YEAR=${1:-$CURRENTYR} > > > > # loop though all months, and sufficient days to get to third Monday > > while [ "$MON" -le 12 ] ; do > > # Use 28 to allow up the the fourth occurrence of any day > > while [ $DAY -le 21 ] ; do > > TST=`date '+%u' -d "$MON/$DAY/$YEAR"` > > if [ $NTHSUN -ge 1 -a $TST -eq $SUNDAY ]; then > > NTHSUN=`expr $NTHSUN - 1 ` > > echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 11:00AM > > till 1:00PM" > > fi > > if [ $NTHMON -ge 1 -a $TST -eq $MONDAY ]; then > > NTHMON=`expr $NTHMON - 1 ` > > if [ $NTHMON -eq 0 ]; then > > echo "`date -d $MON/$DAY/$YEAR "+%A, %B %e, %Y,"` from 6:00PM > > till 8:00PM" > > fi > > fi > > DAY=`expr $DAY + 1 ` > > done > > DAY=1 > > MON=`expr $MON + 1 ` > > NTHSUN=$FIRSTSUN > > NTHMON=$THIRDMON > > done > > > > $ ./sflug-meetings.sh > > Sunday, January 1, 2012, from 11:00AM till 1:00PM > > Monday, January 16, 2012, from 6:00PM till 8:00PM > > Sunday, February 5, 2012, from 11:00AM till 1:00PM > > Monday, February 20, 2012, from 6:00PM till 8:00PM > > Sunday, March 4, 2012, from 11:00AM till 1:00PM > > Monday, March 19, 2012, from 6:00PM till 8:00PM > > Sunday, April 1, 2012, from 11:00AM till 1:00PM > > Monday, April 16, 2012, from 6:00PM till 8:00PM > > Sunday, May 6, 2012, from 11:00AM till 1:00PM > > Monday, May 21, 2012, from 6:00PM till 8:00PM > > Sunday, June 3, 2012, from 11:00AM till 1:00PM > > Monday, June 18, 2012, from 6:00PM till 8:00PM > > Sunday, July 1, 2012, from 11:00AM till 1:00PM > > Monday, July 16, 2012, from 6:00PM till 8:00PM > > Sunday, August 5, 2012, from 11:00AM till 1:00PM > > Monday, August 20, 2012, from 6:00PM till 8:00PM > > Sunday, September 2, 2012, from 11:00AM till 1:00PM > > Monday, September 17, 2012, from 6:00PM till 8:00PM > > Sunday, October 7, 2012, from 11:00AM till 1:00PM > > Monday, October 15, 2012, from 6:00PM till 8:00PM > > Sunday, November 4, 2012, from 11:00AM till 1:00PM > > Monday, November 19, 2012, from 6:00PM till 8:00PM > > Sunday, December 2, 2012, from 11:00AM till 1:00PM > > Monday, December 17, 2012, from 6:00PM till 8:00PM > > > > Ken > > > > On Thu, Jan 19, 2012 at 7:20 AM, jim wrote: > > > > > > Thank you, Rick. > > > > > > > > On Wed, 2012-01-18 at 22:32 -0800, Rick Moen wrote: > > > Forwarding to a wider audience, as y'all still ought to fix > > it. > > > > > > ----- Forwarded message from Rick Moen > > ----- > > > > > > Date: Tue, 5 Jul 2011 01:12:27 -0700 > > > From: Rick Moen > > > To: Jim Stockford > > > Subject: SF-LUG pages > > > Organization: If you lived here, you'd be $HOME already. > > > > > > Hi, Jim. I notice that http://www.sf-lug.org/ no longer > > serves up the > > > site 'index.html' page, but rather an HTTPd-generated index > > page. > > > I am unclear on precisely what changed, but suspect you > > should figure > > > that out and fix it. Otherwise, people are not going to > > easily find the > > > front page, currently visible only if you go specifically > > to: > > > > > > http://www.sf-lug.org/index.html > > > > > > (If you have time, you might want to update what the 'next' > > meetings > > > are. I'm very sympathetic to the problem of deferred > > maintenance.) > > > > > > > > > > > > ----- End forwarded message ----- > > > > > > _______________________________________________ > > > sf-lug mailing list > > > sf-lug at linuxmafia.com > > > http://linuxmafia.com/mailman/listinfo/sf-lug > > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > > > > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at well.com Thu Jan 19 17:30:15 2012 From: jim at well.com (jim) Date: Thu, 19 Jan 2012 17:30:15 -0800 Subject: [sf-lug] (forw) SF-LUG pages In-Reply-To: <20120120011118.GG26383@linuxmafia.com> References: <20120119063200.GA30827@linuxmafia.com> <1326986459.1725.73.camel@jim-LAPTOP> <1327019457.1725.154.camel@jim-LAPTOP> <20120120011118.GG26383@linuxmafia.com> Message-ID: <1327023015.1725.167.camel@jim-LAPTOP> More thanks, Rick. I'll attack this within the next few days and report progress (or its lack). On Thu, 2012-01-19 at 17:11 -0800, Rick Moen wrote: > Quoting jim (jim at systemateka.com): > > > I guess I'll have to move the sf-lug.org web > > site to a new host and repoint the domain name. > > The current host system is not under my control. > > > > Sorry to hear about that. It's a bit of a pain in the neck, when that > happens. > > Let's see where hte autoritative DNS is: > > $ whois sf-lug.org | grep 'Name Server' > Name Server:NS41.WORLDNIC.COM > Name Server:NS42.WORLDNIC.COM > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > Name Server: > $ > > POINT1: Whoever controls the LUG's domain has elected to have only two > nameservers. This is a serious mistake. It makes your domain fragile. > RFC recommendation is minimum 3, maximum 7 authoritative nameservers. > > POINT2: It's disapointing that SF-LUG has completely outsourced DNS > and isn't even running its master nameserver. It's not difficult, and I > can handhold you to get you going. > > Let's check where the master serivce is, and verify that the two servers > are at least serving the same zonefile S/N: > > $ dig -t soa sf-lug.org. @NS41.WORLDNIC.COM. +short > NS41.WORLDNIC.COM. namehost.WORLDNIC.COM. 111062022 10800 3600 604800 3600 > $ dig -t soa sf-lug.org. @NS42.WORLDNIC.COM. +short > NS41.WORLDNIC.COM. namehost.WORLDNIC.COM. 111062022 10800 3600 604800 3600 > $ > > Good: They are serving the same S/N (sufficient proof that they're > providing the same version of the data), and the master copy's claimed > to be the one at NS41.WORLDNIC.COM. > > > POINT3: Contact names/mailboxes in sf-lug.org's public domain records > are a total train wreck -- completely broken. > > The public 'whois' records are the official method for reaching domain > officials and owners, e.g., to say 'Dude, your DNS is broken' or many > other things -- including warning notices about upcoming domain > expirations. The sf-lug.org domain is (wisely) registered out to the > middle of next year, so it's not going to expire soon, but it's a very > bad idea for lots of other reasons to have your public contact > information be broken. > > Public points of contact are: Registrant, Admin Contact, Technical > Contact. SF-LUG's domain data _fail_ to specify a named person for any > of those roles, and (worse) shows 'no.valid.email at worldnic.com' as the > contact mailbox for all three roles. > > These are serious problems. > > > > FYI, I continue to offer SF-LUG and similar groups slave (secondary) DNS > nameservice at two highly reliable nameservers over which I have > administrative control: > > NS1.LINUXMAFIA.COM IP address 198.144.195.186 > NS1.SVLUG.ORG IP address 64.62.190.98 > > Groups wishing to take up that offer should make sure my IPs are > permitted to do AXFR/IXFR zone transfer requests of your zone(s), then > tell me you'd like me to do slave nameservice (and for what zones, > served by what master nameserver IPs). I will let you know when that's > set up and tested, and you _then_ add my nameservers to the > authoritative list in your domain, plus add 'NS' lines pointing to them > in your zonefile. (Don't try to do the above in a different order, or > you may break your DNS and waste your time.) > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From Michael.Paoli at cal.berkeley.edu Sun Jan 22 10:26:10 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sun, 22 Jan 2012 10:26:10 -0800 Subject: [sf-lug] SF-LUG meeting dates, script(s), etc. (Re: (forw) SF-LUG pages) In-Reply-To: References: Message-ID: <20120122102610.212727h1l7154a0y@webmail.rawbw.com> Yes, not the first time someone's written such a script or program, and I certainly wasn't the first either. See also: http://groups.google.com/group/berkeleylug/msg/3f94731ed05673c8?hl=en_US references/excerpts: > Date: Thu, 19 Jan 2012 16:21:25 -0800 > From: Ken Shaffer > To: jim > Cc: sf-lug at linuxmafia.com > Subject: Re: [sf-lug] (forw) SF-LUG pages > Message-ID: > > Content-Type: text/plain; charset="iso-8859-1" > > Hi Jim, > Here's a little script to generate the meetings for a year in your existing > format: http://linuxmafia.com/pipermail/sf-lug/2012q1/009153.html http://groups.google.com/group/berkeleylug/msg/3f94731ed05673c8?hl=en_US From jim at well.com Sun Jan 22 20:51:51 2012 From: jim at well.com (jim) Date: Sun, 22 Jan 2012 20:51:51 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> Message-ID: <1327294311.1725.196.camel@jim-LAPTOP> I think this is a great volunteer project for anyone who's interested in linux system administration. Let us know if you're interested in helping or learning. We can meet up either at the next regular SF-LUG meeting (Sunday February 5 from 11 AM to 1 PM at the Cafe Enchante on Geary at 26th Ave) or at the Linux Discussion Group meeting at Noisebridge (every Wednesday evening from 6 to 8 PM) or both--don't worry about coordinating between multiple meetings, we'll take care of that. Note that Michael is an expert Linux sys admin with a particularly good sense of best practices. On Sun, 2012-01-22 at 18:25 -0800, Michael Paoli wrote: > SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? > > Jim, et. al., > > Do we have a quorum of volunteers (or should we also try to add a person > or two)? In this case, I'm specifically thinking colo box, physical > access and associated systems administration stuff (there's also lots > that can be done mostly remotely). > > Anyway, I see some fairly major upgrades due in our near future. > Impacted are: > SF-LUG: > sflug (guest on vicki, hosts [www.]sf-lug.com) > vicki (host for the above) > BALUG: > vicki (noted above, hosts the immediately below) > balug-sf-lug-v2.balug.org (guest on vicki, hosts lot of BALUG > production) > aladfar.dreamhost.com. (hosted, will be upgraded/replaced for us, hosts > [www.]balug.org, etc.) > > Security support for Debian 5.0 "lenny" ends *soon* (2012-02-06). > To the extent feasible, we should upgrade the relevant systems soon, > preferably before that date, if that's doable, but if not, soon > thereafter. > > Maybe we could plan out the upgrades at an upcoming SF-LUG meeting? > Roughly, I have in mind (what I'd like to do): > o There isn't any official supported upgrade path from i386 to amd64 > o the Silicon Mechanics physical box is and will run amd64/x86_64 > o the Silicon Mechanics physical box supports hardware virtualization > o suitably backup (including on-disk as feasible) > o generally prepare for upgrades > o do "upgrades" as follows: > o vicki: > o backup / move / "shove" stuff around beginning of disk suitably > out-of-the-way (on-disk backups / access to existing data) > o install Debian 6.0.3 (or latest 6.0.x) amd64, using beginning > area(s) of disks, general architecture layout mostly quite as > before (everything mirrored, separate /boot, rest under LVM2, > separate filesystems, etc.) > o install/configure vicki as above to fully support both qemu-kvm, > and xen. Note that on amd64, and with hardware virtualization, > that will allow vicki to support i386 and amd64 images under > qemu-kvm and I believe also xen. > o sflug & balug-sf-lug-v2.balug.org: > o once the above vicki upgrades are done, sflug and > balug-sf-lug-v2.balug.org can be dealt with remotely > o sflug & balug-sf-lug-v2.balug.org can each be dealt with > separately by their primary/lead sysadmin(s) as may be desired, in > general for them, I'd probably recommend proceeding as follows: > o get the existing xen guests running again, more-or-less as they > were (may require some adjustments - most notably boot bits) - > may be advisable to convert them to run under qemu-kvm as soon as > feasible (to avoid guest<-->host kernel, etc. interdependencies) > o upgrade guests to Debian 6.0.3 (or latest 6.0.x) > o optional: change guests from i386 to amd64, use above guests > as reference installations, and do an install/merge to get the > guest(s) as desired to amd64 architecture. > > bit 'o reference/background ;-) ... > > THE END* IS NEAR**! *of security support for Debian GNU/Linux 5.0 > (code name "lenny") **2012-02-06 > > Security support of Debian GNU/Linux 5.0 (code name "lenny") will be > terminated 2012-02-06. > Debian released Debian GNU/Linux 5.0 alias "lenny" 2009-02-14. > Debian released Debian GNU/Linux 6.0 alias "squeeze" 2011-02-06. > > references: > http://lists.debian.org/debian-security-announce/2011/msg00238.html > From rick at linuxmafia.com Mon Jan 23 14:47:31 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 23 Jan 2012 14:47:31 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <1327294311.1725.196.camel@jim-LAPTOP> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> Message-ID: <20120123224731.GC10124@linuxmafia.com> Quoting Jim Stockford (jim at well.com): > Cc: sf-lug at linuxmafia.com, sf-lug-sysadmins at balug.org, > balug-sysadmins at balug.org IMO, best to avoid crossposting as various problems can result. I am guessing that sf-lug-sysadmins at balug.org and balug-sysadmins at balug.org are /etc/aliases entries, as they are not mailing lists. Michael Paoli wrote: > Security support for Debian 5.0 "lenny" ends *soon* (2012-02-06). Someone went out of his/her way to peg the 'vicki' box to named Debian branch 'lenny' and thereby cause it to track that obsolete branch as it dropped out of 'stable', became 'oldstable', and is soon to lose even any security maintenance at all? Well, that was dumb, wasn't it? Now, you know yet another reason why you should use functional track names like stable, testing, unstable. Somebody obviously decided to commit this blunder as a deliberate policy choice, possibly the 'expert Linyux sys admin with a particularly good set of best practices' you speak of? ;-> From rick at linuxmafia.com Mon Jan 23 17:19:49 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 23 Jan 2012 17:19:49 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120123224731.GC10124@linuxmafia.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> Message-ID: <20120124011949.GA6223@linuxmafia.com> I wrote: > Somebody obviously decided to commit this blunder as a deliberate policy > choice, possibly the 'expert Linux sys admin with a particularly good > set of best practices' you speak of? ;-> Quick, Sherman! The Wayback Machine! http://linuxmafia.com/pipermail/sf-lug/2007q2/001406.html http://linuxmafia.com/pipermail/sf-lug/2007q2/001408.html In 2007, I cautioned Michael Paoli and others against their proposal to peg Debian to a named branch and explained why it was unwise. Might want to work with the Debian administrative regime. It turns out better. From cymraegish at gmail.com Mon Jan 23 18:34:57 2012 From: cymraegish at gmail.com (Brian Morris) Date: Mon, 23 Jan 2012 18:34:57 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120124011949.GA6223@linuxmafia.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> Message-ID: IIRC some major installations choose to use the proper names. Why - well for some other distros (eg Ubuntu) than Debian releases ("when ready") are not so stable / secure when new. Even with Debian tho there are always technical adjustments (new features, even dropped packages). There is a desire for planned rather than forced upgrades. Also one may /should be able to upgrade less often. I thought one release back was always supported ? -Brian On Mon, Jan 23, 2012 at 5:19 PM, Rick Moen wrote: > I wrote: > > > Somebody obviously decided to commit this blunder as a deliberate policy > > choice, possibly the 'expert Linux sys admin with a particularly good > > set of best practices' you speak of? ;-> > > Quick, Sherman! The Wayback Machine! > http://linuxmafia.com/pipermail/sf-lug/2007q2/001406.html > http://linuxmafia.com/pipermail/sf-lug/2007q2/001408.html > > In 2007, I cautioned Michael Paoli and others against their proposal to > peg Debian to a named branch and explained why it was unwise. Might > want to work with the Debian administrative regime. It turns out better. > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Mon Jan 23 18:51:25 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 23 Jan 2012 18:51:25 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> Message-ID: <20120124025125.GE24477@linuxmafia.com> Quoting Brian Morris (cymraegish at gmail.com): > IIRC some major installations choose to use the proper names. You seem to be ignoring upthread context, which is Debian. > Even with Debian tho there are always technical adjustments (new features, > even dropped packages). The universe has death and taxes in it, too. ;-> Yes, when Web servers running package apache (1.3.x) followed the stable track from 4.0/etch to 5.0/lenny, there were no more updates available to the apache (1.3.x) packages. OH NOEZ! Administrators who'd been hiding under rocks for about five years might have missed the need to bear down and create a corresponding conffile setup for the apache2 packages. They might find that... EEK! Their Apache 1.3 setups continued to run normally. Um, I'm sorry, I'm sure there was an emergency of epic proportions in there somewhere. I wonder where I mislaid it? > There is a desire for planned rather than forced upgrades. Oh, you mean a 'planned upgrade' like the one that is the principal responsibility of each Debian Release Manager and that they've had a superb record of bringing off repeatedly with zero downtime, as opposed to a 'forced upgrade' like the necessarily messy and fragile one, _with_ downtime, that SF-LUG and BALUG's machine is now going to have to do? Those sorts of upgrades? > Also one may /should be able to upgrade less often. Yeah, have fun with oldstable. Mail us an illuminated manuscript when you have a moment. From Michael.Paoli at cal.berkeley.edu Mon Jan 23 19:05:35 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 23 Jan 2012 19:05:35 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] In-Reply-To: <1327294311.1725.196.camel@jim-LAPTOP> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> Message-ID: <20120123190535.204043campqx6jac@webmail.rawbw.com> [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] Jim, thanks for passing this along - thought you might. :-) I'm also passing it along to "BALUG-Talk". Also, I *probably* will make it to Noisebridge this Wednesday evening (6-8p). I'll confirm Wednesday afternoon if I'm able to make it (and will confirm at *least* an hour in advance (before 5pm), and probably a fair bit earlier than that (perhaps before 3pm)). I'm also intending to make the SF-LUG 2012-02-05 meeting. Anyway, between those meetings, hopefully we'll have the upgrades pretty well planned out and can execute them relatively soon after. I did also get the host "vicki" a wee bit closer to prepared yesterday. Some we reference excerpts added further towards the tail end of this email. references/excerpts: https://www.noisebridge.net/wiki/Visitor_advice https://www.noisebridge.net/wiki/Getting_Here https://www.noisebridge.net/wiki/LinuxDiscussion http://www.sf-lug.com/ http://www.balug.org/#Lists > From: jim > Subject: Re: SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? > Date: Sun, 22 Jan 2012 20:51:51 -0800 > > > I think this is a great volunteer project for anyone > who's interested in linux system administration. Let us > know if you're interested in helping or learning. > We can meet up either at the next regular SF-LUG > meeting (Sunday February 5 from 11 AM to 1 PM at the Cafe > Enchante on Geary at 26th Ave) or at the Linux Discussion > Group meeting at Noisebridge (every Wednesday evening > from 6 to 8 PM) or both--don't worry about coordinating > between multiple meetings, we'll take care of that. > Note that Michael is an expert Linux sys admin with > a particularly good sense of best practices. > > > > On Sun, 2012-01-22 at 18:25 -0800, Michael Paoli wrote: >> SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? >> >> Jim, et. al., >> >> Do we have a quorum of volunteers (or should we also try to add a person >> or two)? In this case, I'm specifically thinking colo box, physical >> access and associated systems administration stuff (there's also lots >> that can be done mostly remotely). >> >> Anyway, I see some fairly major upgrades due in our near future. >> Impacted are: >> SF-LUG: >> sflug (guest on vicki, hosts [www.]sf-lug.com) >> vicki (host for the above) >> BALUG: >> vicki (noted above, hosts the immediately below) >> balug-sf-lug-v2.balug.org (guest on vicki, hosts lot of BALUG >> production) >> aladfar.dreamhost.com. (hosted, will be upgraded/replaced for us, hosts >> [www.]balug.org, etc.) >> >> Security support for Debian 5.0 "lenny" ends *soon* (2012-02-06). >> To the extent feasible, we should upgrade the relevant systems soon, >> preferably before that date, if that's doable, but if not, soon >> thereafter. >> >> Maybe we could plan out the upgrades at an upcoming SF-LUG meeting? >> Roughly, I have in mind (what I'd like to do): >> o There isn't any official supported upgrade path from i386 to amd64 >> o the Silicon Mechanics physical box is and will run amd64/x86_64 >> o the Silicon Mechanics physical box supports hardware virtualization >> o suitably backup (including on-disk as feasible) >> o generally prepare for upgrades >> o do "upgrades" as follows: >> o vicki: >> o backup / move / "shove" stuff around beginning of disk suitably >> out-of-the-way (on-disk backups / access to existing data) >> o install Debian 6.0.3 (or latest 6.0.x) amd64, using beginning >> area(s) of disks, general architecture layout mostly quite as >> before (everything mirrored, separate /boot, rest under LVM2, >> separate filesystems, etc.) >> o install/configure vicki as above to fully support both qemu-kvm, >> and xen. Note that on amd64, and with hardware virtualization, >> that will allow vicki to support i386 and amd64 images under >> qemu-kvm and I believe also xen. >> o sflug & balug-sf-lug-v2.balug.org: >> o once the above vicki upgrades are done, sflug and >> balug-sf-lug-v2.balug.org can be dealt with remotely >> o sflug & balug-sf-lug-v2.balug.org can each be dealt with >> separately by their primary/lead sysadmin(s) as may be desired, in >> general for them, I'd probably recommend proceeding as follows: >> o get the existing xen guests running again, more-or-less as they >> were (may require some adjustments - most notably boot bits) - >> may be advisable to convert them to run under qemu-kvm as soon as >> feasible (to avoid guest<-->host kernel, etc. interdependencies) >> o upgrade guests to Debian 6.0.3 (or latest 6.0.x) >> o optional: change guests from i386 to amd64, use above guests >> as reference installations, and do an install/merge to get the >> guest(s) as desired to amd64 architecture. >> >> bit 'o reference/background ;-) ... >> >> THE END* IS NEAR**! *of security support for Debian GNU/Linux 5.0 >> (code name "lenny") **2012-02-06 >> >> Security support of Debian GNU/Linux 5.0 (code name "lenny") will be >> terminated 2012-02-06. >> Debian released Debian GNU/Linux 5.0 alias "lenny" 2009-02-14. >> Debian released Debian GNU/Linux 6.0 alias "squeeze" 2011-02-06. >> >> references: >> http://lists.debian.org/debian-security-announce/2011/msg00238.html //or if we present that data a bit differently, to show just how //identical the partitioning on the two /dev/sd[ab] disks is: Disk /dev/sd[ab]: 30401 cylinders, 255 heads, 63 sectors/track Units = sectors of 512 bytes, counting from 0 Device Boot Start End #sectors Id System /dev/sd[ab]1 63 498014 497952 fd Linux raid autodetect /dev/sd[ab]2 498015 35648234 35150220 fd Linux raid autodetect /dev/sd[ab]10 318472623 375037424 56564802 fd Linux raid autodetect //excepting extended partition, all logical and non-zero length primary //partitions paired up between the sda and sdb devices partisions as md //raid1 devices ///dev/md0 is used for /boot sda1 sdb1 md0 /dev/md0 241036 57135 171457 25% /boot //md[1-6] used for LVM PV Name /dev/md1 VG Name vg00 //before: (and above) sda2 sdb2 md1 vg00 sda10 sdb10 md7 (unused) //after: sda2 sdb2 md1 (unused) sda10 sdb10 md7 vg00 references: file://vicki/root/upgrades/5.0_lenny_to_6.0_squeeze/ 0001_a_general_plan_or_outline 0002_vicki-pre-disk-analysis 0003_vicki_initial_disk_prep From cymraegish at gmail.com Mon Jan 23 19:56:40 2012 From: cymraegish at gmail.com (Brian Morris) Date: Mon, 23 Jan 2012 19:56:40 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120124025125.GE24477@linuxmafia.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> <20120124025125.GE24477@linuxmafia.com> Message-ID: On Mon, Jan 23, 2012 at 6:51 PM, Rick Moen wrote: > Quoting Brian Morris (cymraegish at gmail.com): > > > IIRC some major installations choose to use the proper names. > > You seem to be ignoring upthread context, which is Debian. > I meant Debian, such as OSU Open Source Lab, a repository of many Distros (Linux and BSD), running Debian oldstable. > > > Even with Debian tho there are always technical adjustments (new > features, > > even dropped packages). > > The universe has death and taxes in it, too. ;-> > > Yes, when Web servers running package apache (1.3.x) followed the stable > track from 4.0/etch to 5.0/lenny, there were no more updates available > to the apache (1.3.x) packages. OH NOEZ! > > Administrators who'd been hiding under rocks for about five years might > have missed the need to bear down and create a corresponding conffile > setup for the apache2 packages. They might find that... EEK! Their > Apache 1.3 setups continued to run normally. Um, I'm sorry, I'm sure > there was an emergency of epic proportions in there somewhere. I wonder > where I mislaid it? > This sounds rather derogatory to me. Why spend time and money on labour if before you have need to ? Is there some "epic emergency" which requires upgrades before they are needed or necessary ? > > > There is a desire for planned rather than forced upgrades. > > Oh, you mean a 'planned upgrade' like the one that is the principal > responsibility of each Debian Release Manager and that they've had a > superb record of bringing off repeatedly with zero downtime, as opposed > to a 'forced upgrade' like the necessarily messy and fragile one, _with_ > downtime, that SF-LUG and BALUG's machine is now going to have to do? > > Those sorts of upgrades? > > > Also one may /should be able to upgrade less often. > > Yeah, have fun with oldstable. Mail us an illuminated manuscript when > you have a moment. > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Mon Jan 23 20:30:21 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 23 Jan 2012 20:30:21 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> <20120124025125.GE24477@linuxmafia.com> Message-ID: <20120124043021.GG24477@linuxmafia.com> Quoting Brian Morris (cymraegish at gmail.com): > I meant Debian, such as OSU Open Source Lab, a repository of many Distros > (Linux and BSD), running Debian oldstable. You are continuing to gloriously ignore upthread context. I conclude that you wish to hold some entirely different conversation, presumpably with someone else, as I have not finished with the one I actually addressed. (Yes, I did indeed advise you to kindly move along, sonny. Astute of you.) > This sounds rather derogatory to me. Why spend time and money on labour if > before you have need to ? Heavens, I would not _dream_ of dissuading you from running 4.0/etch's unmaintained Apache 1.3 packages in 2012. You go right ahead and do that. From jim at systemateka.com Mon Jan 23 22:18:25 2012 From: jim at systemateka.com (jim) Date: Mon, 23 Jan 2012 22:18:25 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120124011949.GA6223@linuxmafia.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> Message-ID: <1327385905.1725.261.camel@jim-LAPTOP> Say what you will; i say michael is expert, a whiz, even. I say you are, too, and thanks for the recommend. I'm pondering. Just in case it isn't clear to anyone, "vicki" is the hostname for the box per the base debian system. We used XEN to create two guest VM systems, one for SF-LUG.com and the other for BALUG. On Mon, 2012-01-23 at 17:19 -0800, Rick Moen wrote: > I wrote: > > > Somebody obviously decided to commit this blunder as a deliberate policy > > choice, possibly the 'expert Linux sys admin with a particularly good > > set of best practices' you speak of? ;-> > > Quick, Sherman! The Wayback Machine! > http://linuxmafia.com/pipermail/sf-lug/2007q2/001406.html > http://linuxmafia.com/pipermail/sf-lug/2007q2/001408.html > > In 2007, I cautioned Michael Paoli and others against their proposal to > peg Debian to a named branch and explained why it was unwise. Might > want to work with the Debian administrative regime. It turns out better. > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Mon Jan 23 22:28:01 2012 From: rick at linuxmafia.com (Rick Moen) Date: Mon, 23 Jan 2012 22:28:01 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <1327385905.1725.261.camel@jim-LAPTOP> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> <1327385905.1725.261.camel@jim-LAPTOP> Message-ID: <20120124062801.GJ24477@linuxmafia.com> Quoting jim (jim at systemateka.com): > Say what you will; i say michael is expert, a > whiz, even. {shrug} Your 'expert Linux sys admin with particularly good set of best practices' was instrumental in getting the vicki host into its present difficulties by applying one of his 'particularly good set of best practices' that I specifically warned against, and explained why, back in '07 -- and, I could swear, a number of other times. I'm not arguing with your opinion; I just note the coincidence. From jim at well.com Mon Jan 23 23:31:30 2012 From: jim at well.com (jim) Date: Mon, 23 Jan 2012 23:31:30 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <20120124062801.GJ24477@linuxmafia.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> <1327385905.1725.261.camel@jim-LAPTOP> <20120124062801.GJ24477@linuxmafia.com> Message-ID: <1327390290.1725.266.camel@jim-LAPTOP> (sigh) I'm sure you did explain. That it wasn't bought could be * "i read it three times and still don't know what he means"--a problem with the reader or the writer or both? * "we don't do things that way here". * "yeah, i get it, but i've got my (other) reasons." * ...(more possibilities, I'm sure)... I've lost track. I'll have to re-read the thread to figure out the issue. On Mon, 2012-01-23 at 22:28 -0800, Rick Moen wrote: > Quoting jim (jim at systemateka.com): > > > Say what you will; i say michael is expert, a > > whiz, even. > > {shrug} > > Your 'expert Linux sys admin with particularly good set of best > practices' was instrumental in getting the vicki host into its present > difficulties by applying one of his 'particularly good set of best > practices' that I specifically warned against, and explained why, > back in '07 -- and, I could swear, a number of other times. I'm not > arguing with your opinion; I just note the coincidence. > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Tue Jan 24 00:16:42 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 24 Jan 2012 00:16:42 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? In-Reply-To: <1327390290.1725.266.camel@jim-LAPTOP> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123224731.GC10124@linuxmafia.com> <20120124011949.GA6223@linuxmafia.com> <1327385905.1725.261.camel@jim-LAPTOP> <20120124062801.GJ24477@linuxmafia.com> <1327390290.1725.266.camel@jim-LAPTOP> Message-ID: <20120124081642.GK24477@linuxmafia.com> Quoting Jim Stockford (jim at well.com): > I've lost track. I'll have to re-read the thread > to figure out the issue. No worries. Here's an effort to overcome the tl;dr problem: Conventional Debian installers that start you on the 'stable' maintenance track do so by using keyword 'stable' in the host's /etc/apt/sources.list[.d/] files. If you leave that alone, you'll get the benefit of Debian's release process and smoothly progress from each stable release to the next. Some people fool with it (e.g., sustituting a named branch for 'stable') for a variety of reasons that generally boil down to: don't really understand Debian administration and/or can't help themselves from fixing what isn't broken. Above deliberately ignores the usual motley assortment of edge cases, exceptions, elaborations, pointless and time-wasting quibbles, and use cases for which Debian-stable isn't appropriate or desired in the first place. FWIW, I personally have eschewed Debian-stable for many years, finding testing/unstable better for all of my own machine use cases. E.g., this evening, I finally got around to doing OS installation on machine #2 at my desk at work, needed in order to be in a high-security VPN environment that cannot use resources my main machine needs. I used: Aptosid 2012-03 XFCE i386 live CD. Did installation, fetching needed firmware-linux-nonfree package for the tg3 ethernet firmware. (Bad Broadcom! No biscuit.) Added: wmaker, wmaker-conf, xdm, xterm, gimp, libreoffice, centerim, pidgin, irssi, libpurple-bin gimp-data-extras, x11-apps, xscreensaver, xfishtank, xdaliclock, xscreensaver-gl, fortune, fortunes-off, equivs, imagemagick, dh-make, debian-keyring, fastjar, curl, enscript ffmpeg, icedtea-plugin, openjdk-6-jre-headless, openjdk-6-jre. Removed: xfce4*, gparted, parted, ntfs-3g, jfsutils, pcmciautils, pppoeconf, reiserfsprogs, thunar*, wpasupplicant, bluetooth, bluez, bluez-pcmcia-support, brasero, brasero-common, dpkg-dev, fonts-vlgothic, gdm3, cryptsetup, sane, gpm. Run the following repeatedly to remove cruft: apt-get autoremove apt-get --purge remove $(deborphan) debfoster dpkg -l | grep ^rc | awk {'print $2'} | xargs dpkg --purge Comment out all but two virtual terminals in /etc/inittab. Then: telinit q update-alternatives --config x-window manager #Pick wmaker rm /etc/alternatives/x-session-manager #Dislike X session managers. Add to /etc/network/interfaces: allow-hotplug eth0 iface eth0 inet dhcp Copy over /etc/cups/printers.conf from my other workstation. Kill X11 and reboot. Now comes up to xdm, which upon login starts a clean Window Maker desktop. Open an xterm, do 'ps auxw' to make sure there aren't processes running I don't want running -- which, within reason, aren't. /etc/apt/sources.list.d/ has two default files from Aptosid, one with Debian's unstable repos, the other with Aptosid's stabilisation packages that aim to take the risk out of a pure Debian-unstable desktop box. I might stay with that for a while, or I might cut over to my standard regime, which is to track 'testing' via package-pinning, with access to 'unstable' packages if I request that track specifically. The latter Works for Me[tm] over a period of many years. From jane_ikari at yahoo.com Tue Jan 24 08:55:00 2012 From: jane_ikari at yahoo.com (bruce coston) Date: Tue, 24 Jan 2012 08:55:00 -0800 (PST) Subject: [sf-lug] " Have fun with Old Stable " In-Reply-To: Message-ID: <1327424100.75363.YahooMailClassic@web164519.mail.gq1.yahoo.com> As a KDE3.x user I wish I were having fun with oldstable vs. the crap we use now . And we don't plan on ever leaving 3.x . - Bruce -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Tue Jan 24 10:06:06 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 24 Jan 2012 10:06:06 -0800 Subject: [sf-lug] " Have fun with Old Stable " In-Reply-To: <1327424100.75363.YahooMailClassic@web164519.mail.gq1.yahoo.com> References: <1327424100.75363.YahooMailClassic@web164519.mail.gq1.yahoo.com> Message-ID: <20120124180606.GF10124@linuxmafia.com> Quoting Bruce Coston (jane_ikari at yahoo.com): > As a KDE3.x user I wish I were having fun with oldstable vs. the crap > we use now . The version of KDE in Debian Lenny (current oldstable) is indeed 3.5.10 -- which you can indeed enjoy if you wish along with other cutting-edge offerings like Firefox 3.0.6 if you like (though, soon with no more security updates). From einfeldt at gmail.com Tue Jan 24 18:02:16 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Tue, 24 Jan 2012 18:02:16 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm Message-ID: Hi, Partimus.org will be having a triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm, at the Creative Arts Charter School at 1601 Turk Street, at the corner of Turk and Pierce. This is the school that had that huge fire on 12/22/11. More about that fire here: http://blog.partimus.org/?p=159 The purpose of this triage fest is to separate good equipment from bad equipment and at 2:00 pm, we will move the bad equipment off premises (assuming that we get a volunteer who has a vehicle, preferably a pick-up truck). Truck or no truck, we will finish at 3:00 pm. Pizza will be served at 12:30 p.m. Please bring with you everything that you would need to test a computer and its peripheral equipment, and to take a computer apart and put it back together. It would also be good to bring Ubuntu 10.04 on a flash drive, since we will be installing that distro on some machines. This public school relies on our Linux computers heavily for the work that their students do, so they will definitely appreciate the work! Thanks in advance to all volunteers! -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Tue Jan 24 19:00:14 2012 From: rick at linuxmafia.com (Rick Moen) Date: Tue, 24 Jan 2012 19:00:14 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: References: Message-ID: <20120125030014.GH10124@linuxmafia.com> Quoting Christian Einfeldt (einfeldt at gmail.com): > This public school... ITYM 'this charter school operated by a non-profit corporation that leases a city-owned school property'. Meritorious though some may be, charter schools are _not_ public schools (no matter what they say in their FAQs), but rather are charter schools in distinction to public schools. Among other things, charter schools, even though they pull down public funds, are not required to accept any and all students: They are permitted to pick and choose whom they are willing to teach. Real public schools have a legal mandate to teach any child. From mhigashi at gmail.com Tue Jan 24 19:16:48 2012 From: mhigashi at gmail.com (Mike Higashi) Date: Tue, 24 Jan 2012 19:16:48 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: <20120125030014.GH10124@linuxmafia.com> References: <20120125030014.GH10124@linuxmafia.com> Message-ID: On Tue, Jan 24, 2012 at 7:00 PM, Rick Moen wrote: > > Among other things, charter schools, even though they pull down public > funds, are not required to accept any and all students: ?They are > permitted to pick and choose whom they are willing to teach. Can this vary by school district? According to the Creative Arts Charter School FAQ: How do students and families enroll in a charter school? Charters are open to all and offer spaces at random through an independent admissions lottery. This lottery is separate from the main SFUSD lottery, but the two run in parallel. The CACS lottery is conducted with oversight by an SFUSD representative. Mike From jbpuig at sbcglobal.net Wed Jan 25 09:06:54 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 25 Jan 2012 09:06:54 -0800 (PST) Subject: [sf-lug] Meeting Reminder - Linux Discussion at Noisebridge Message-ID: <1327511214.14651.YahooMailRC@web83801.mail.sp1.yahoo.com> The Noisebridge Linux Discussion meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From jim at systemateka.com Wed Jan 25 09:16:47 2012 From: jim at systemateka.com (jim) Date: Wed, 25 Jan 2012 09:16:47 -0800 Subject: [sf-lug] January BayPIGgies meeting: Thursday, January 26, 2012: Dart Message-ID: <1327511807.1696.25.camel@jim-LAPTOP> January BayPIGgies meeting: Thursday, January 26, 2012: Dart Speaker: Shannon JJ Behrens Abstract: Dart is a new class-based programming language for creating structured web applications. Developed with the goals of simplicity, efficiency, and scalability, the Dart language combines powerful new language features with familiar language constructs into a clear, readable syntax. Why is Dart significant? Because Google has a fork of WebKit with the Dart VM integrated into the browser! Bio: JJ is a developer advocate for YouTube APIs. His goal is to foster a rich set of third-party applications built on YouTube APIs. He's a well-known member of the Python community. He blogs at jjinux.blogspot.com on topics such as Python, Ruby, Linux, open source software, the Web, and lesser-known programming languages. http://jjinux.blogspot.com ......................................... LOCATION Symantec Corporation Symantec Vcafe 350 Ellis Street Mountain View, CA 94043 http://maps.google.com/maps/ms?oe=utf-8&client=firefox-a&ie=UTF8&fb=1&split=1&gl=us&ei=w6i_Sfr6MZmQsQOzlv0v&hl=en&t=h&msa=0&msid=116202735295394761637.00046550c09ff3d96bff1&ll=37.397693,-122.053707&spn=0.002902,0.004828&z=18 BayPIGgies meeting information is available at http://www.baypiggies.net/ ------------------------ Agenda ------------------------ ..... 7:30 PM ........................... General hubbub, inventory end-of-meeting announcements, any first-minute announcements. ..... 7:35 PM to 8:25 PM (or so) ................ The talk: Dart ..... 8:25 PM to 8:55 PM (or so) ................ Questions and Answers ..... 8:55 PM to 9:30 PM (or so) ................ Mapping and Random Access Mapping is a rapid-fire audience announcement of issues, hiring, events, and other topics. Random Access follows people immediately to allow follow up on the announcements and other interests. From rick at linuxmafia.com Wed Jan 25 11:02:53 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 25 Jan 2012 11:02:53 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: References: <20120125030014.GH10124@linuxmafia.com> Message-ID: <20120125190253.GI10124@linuxmafia.com> Quoting Mike Higashi (mhigashi at gmail.com): > Can this vary by school district? According to the Creative Arts Charter > School FAQ: It's a credit to the administration of Creative Arts Charter School that its admission policy has the school open to all students -- and thank you for finding that. What I was saying is that privately administered charter schools are not _required_ to accept any and all students. Anyway, I would appreciate it if Christian would be clearer about Creative Arts Charter School _not_ being part of the public school system, but rather a private school corporation that is leasing city property. From einfeldt at gmail.com Wed Jan 25 12:42:01 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Wed, 25 Jan 2012 12:42:01 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: <20120125190253.GI10124@linuxmafia.com> References: <20120125030014.GH10124@linuxmafia.com> <20120125190253.GI10124@linuxmafia.com> Message-ID: hi, On Wed, Jan 25, 2012 at 11:02 AM, Rick Moen wrote: > Quoting Mike Higashi (mhigashi at gmail.com): > > > Can this vary by school district? According to the Creative Arts Charter > > School FAQ: > > It's a credit to the administration of Creative Arts Charter School that > its admission policy has the school open to all students -- and thank > you for finding that. What I was saying is that privately administered > charter schools are not _required_ to accept any and all students. > > Anyway, I would appreciate it if Christian would be clearer about > Creative Arts Charter School _not_ being part of the public school > system, but rather a private school corporation that is leasing city > property. > CACS' charter was granted by SFUSD and can be revoked by SFUSD, so it is a creature of the public school system. The property is public property. CACS gets students through a public lottery, as Mike noted. Maybe, just maybe 1% of the families whose children attend CACS could afford a private school education. CACS is clearly a public school, not a private school, for our purposes. Partimus.org does not support private schools. -------------- next part -------------- An HTML attachment was scrubbed... URL: From tomdiz at yahoo.com Wed Jan 25 12:44:00 2012 From: tomdiz at yahoo.com (Thomas DiZoglio) Date: Wed, 25 Jan 2012 12:44:00 -0800 (PST) Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm Message-ID: <1327524240.9283.YahooMailNeo@web161305.mail.bf1.yahoo.com> Creative Arts Charter School is part of the SF public school system. It is lottery based like all the other public schools, you just have to apply separate then the top 10 list for other public schools. They are not some rich private school and they need a lot of help because a fire destroyed there computer equipment. Let it go. ------------------------ t0md -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Wed Jan 25 13:15:50 2012 From: rick at linuxmafia.com (Rick Moen) Date: Wed, 25 Jan 2012 13:15:50 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: References: <20120125030014.GH10124@linuxmafia.com> <20120125190253.GI10124@linuxmafia.com> Message-ID: <20120125211550.GR24477@linuxmafia.com> Quoting Christian Einfeldt (einfeldt at gmail.com): > hi, Hello. I have no idea why you are sending me offlist private mail. Redirecting. > CACS' charter was granted by SFUSD and can be revoked by SFUSD, so it is a > creature of the public school system. The property is public property. > CACS gets students through a public lottery, as Mike noted. Maybe, just > maybe 1% of the families whose children attend CACS could afford a private > school education. CACS is clearly a public school, not a private school, > for our purposes. Partimus.org does not support private schools. You danced all around the point that the school is run by a private corporation and not by SFUSD. Ergo, it is not a public school, by definition -- no matter how you would like to claim otherwise for PR purposes. (It seems a pretty meritorious charter school, but it's still a charter school, not a public one.) If you continue to post misleading claims in public, you can expect to continue getting corrected. Eventually, some people might start to wonder about your habit of playing fast and loose with facts. And, by the way, speaking of playing fast and loose with the facts: > CACS' charter was granted by SFUSD and can be revoked by SFUSD, so > it is a creature of the public school system. 1. CACS's charter is from the San Francisco Board of Education. Charter schools' charters in California can be granted by the local Board of Education or by the State Board of Education. (See Education Code section 47602(a)(1).) They are NOT granted by local school districts, which do not run the schools (see 'not a public school', above). 2. SFUSD has no power whatsoever to 'revoke' the charter of any public school, as they neither issue those charters nor run the schools (see 'not a public school', above). S.F. Board of Education (and the state Board), for its part, cannot summarily 'revoke' such a charter, either: It issues CACS's charter for five-year periods at a time, and can revoke such authority only in heavily constrained, extreme circumstances. (See Education Code sections 1241.5, 47604.3, 47604.4, and 47604.5.) Basically, it's a private school using public property: a privitising of part of the public school system. Deal. From Michael.Paoli at cal.berkeley.edu Wed Jan 25 13:25:55 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Wed, 25 Jan 2012 13:25:55 -0800 Subject: [sf-lug] (6-8p tonight @ Noisebridge) ... SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] In-Reply-To: <20120123190535.204043campqx6jac@webmail.rawbw.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123190535.204043campqx6jac@webmail.rawbw.com> Message-ID: <20120125132555.22663uc1x4l8ocys@webmail.rawbw.com> [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] And yes, I should be at Noisebridge this evening, 6p-8p. For those that are interested in the planning/upgrade process, but can't make it tonight, I'm also planning to attend the next SF-LUG meeting on 2012-02-05. May also put out some status/summary emails in the meantime (may or may not also send those to BALUG-Talk - but will probably at least put pointer(s) on email to BALUG-Talk where such emails may be found/followed). > From: "Michael Paoli" > Subject: Re: SF-LUG & BALUG: System OS upgrades *soon*(?) - > volunteer(s)? [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE > SUBSCRIBED TO BOTH] > Date: Mon, 23 Jan 2012 19:05:35 -0800 > [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] > > Jim, thanks for passing this along - thought you might. :-) > I'm also passing it along to "BALUG-Talk". > > Also, I *probably* will make it to Noisebridge this Wednesday > evening (6-8p). I'll confirm Wednesday afternoon if I'm able to make > it (and will confirm at *least* an hour in advance (before 5pm), > and probably a fair bit earlier than that (perhaps before 3pm)). > > I'm also intending to make the SF-LUG 2012-02-05 meeting. > > Anyway, between those meetings, hopefully we'll have the upgrades pretty > well planned out and can execute them relatively soon after. > > I did also get the host "vicki" a wee bit closer to prepared yesterday. > Some we reference excerpts added further towards the tail end of this email. > > references/excerpts: > https://www.noisebridge.net/wiki/Visitor_advice > https://www.noisebridge.net/wiki/Getting_Here > https://www.noisebridge.net/wiki/LinuxDiscussion > http://www.sf-lug.com/ > http://www.balug.org/#Lists > >> From: jim >> Subject: Re: SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? >> Date: Sun, 22 Jan 2012 20:51:51 -0800 > >> >> >> I think this is a great volunteer project for anyone >> who's interested in linux system administration. Let us >> know if you're interested in helping or learning. >> We can meet up either at the next regular SF-LUG >> meeting (Sunday February 5 from 11 AM to 1 PM at the Cafe >> Enchante on Geary at 26th Ave) or at the Linux Discussion >> Group meeting at Noisebridge (every Wednesday evening >> from 6 to 8 PM) or both--don't worry about coordinating >> between multiple meetings, we'll take care of that. >> Note that Michael is an expert Linux sys admin with >> a particularly good sense of best practices. >> >> >> >> On Sun, 2012-01-22 at 18:25 -0800, Michael Paoli wrote: >>> SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? >>> >>> Jim, et. al., >>> >>> Do we have a quorum of volunteers (or should we also try to add a person >>> or two)? In this case, I'm specifically thinking colo box, physical >>> access and associated systems administration stuff (there's also lots >>> that can be done mostly remotely). >>> >>> Anyway, I see some fairly major upgrades due in our near future. >>> Impacted are: >>> SF-LUG: >>> sflug (guest on vicki, hosts [www.]sf-lug.com) >>> vicki (host for the above) >>> BALUG: >>> vicki (noted above, hosts the immediately below) >>> balug-sf-lug-v2.balug.org (guest on vicki, hosts lot of BALUG >>> production) >>> aladfar.dreamhost.com. (hosted, will be upgraded/replaced for us, hosts >>> [www.]balug.org, etc.) >>> >>> Security support for Debian 5.0 "lenny" ends *soon* (2012-02-06). >>> To the extent feasible, we should upgrade the relevant systems soon, >>> preferably before that date, if that's doable, but if not, soon >>> thereafter. >>> >>> Maybe we could plan out the upgrades at an upcoming SF-LUG meeting? >>> Roughly, I have in mind (what I'd like to do): >>> o There isn't any official supported upgrade path from i386 to amd64 >>> o the Silicon Mechanics physical box is and will run amd64/x86_64 >>> o the Silicon Mechanics physical box supports hardware virtualization >>> o suitably backup (including on-disk as feasible) >>> o generally prepare for upgrades >>> o do "upgrades" as follows: >>> o vicki: >>> o backup / move / "shove" stuff around beginning of disk suitably >>> out-of-the-way (on-disk backups / access to existing data) >>> o install Debian 6.0.3 (or latest 6.0.x) amd64, using beginning >>> area(s) of disks, general architecture layout mostly quite as >>> before (everything mirrored, separate /boot, rest under LVM2, >>> separate filesystems, etc.) >>> o install/configure vicki as above to fully support both qemu-kvm, >>> and xen. Note that on amd64, and with hardware virtualization, >>> that will allow vicki to support i386 and amd64 images under >>> qemu-kvm and I believe also xen. >>> o sflug & balug-sf-lug-v2.balug.org: >>> o once the above vicki upgrades are done, sflug and >>> balug-sf-lug-v2.balug.org can be dealt with remotely >>> o sflug & balug-sf-lug-v2.balug.org can each be dealt with >>> separately by their primary/lead sysadmin(s) as may be desired, in >>> general for them, I'd probably recommend proceeding as follows: >>> o get the existing xen guests running again, more-or-less as they >>> were (may require some adjustments - most notably boot bits) - >>> may be advisable to convert them to run under qemu-kvm as soon as >>> feasible (to avoid guest<-->host kernel, etc. interdependencies) >>> o upgrade guests to Debian 6.0.3 (or latest 6.0.x) >>> o optional: change guests from i386 to amd64, use above guests >>> as reference installations, and do an install/merge to get the >>> guest(s) as desired to amd64 architecture. >>> >>> bit 'o reference/background ;-) ... >>> >>> THE END* IS NEAR**! *of security support for Debian GNU/Linux 5.0 >>> (code name "lenny") **2012-02-06 >>> >>> Security support of Debian GNU/Linux 5.0 (code name "lenny") will be >>> terminated 2012-02-06. >>> Debian released Debian GNU/Linux 5.0 alias "lenny" 2009-02-14. >>> Debian released Debian GNU/Linux 6.0 alias "squeeze" 2011-02-06. >>> >>> references: >>> http://lists.debian.org/debian-security-announce/2011/msg00238.html > > //or if we present that data a bit differently, to show just how > //identical the partitioning on the two /dev/sd[ab] disks is: > Disk /dev/sd[ab]: 30401 cylinders, 255 heads, 63 sectors/track > Units = sectors of 512 bytes, counting from 0 > > Device Boot Start End #sectors Id System > /dev/sd[ab]1 63 498014 497952 fd Linux raid autodetect > /dev/sd[ab]2 498015 35648234 35150220 fd Linux raid autodetect > /dev/sd[ab]10 318472623 375037424 56564802 fd Linux raid autodetect > > //excepting extended partition, all logical and non-zero length primary > //partitions paired up between the sda and sdb devices partisions as md > //raid1 devices > > ///dev/md0 is used for /boot > sda1 sdb1 md0 > /dev/md0 241036 57135 171457 25% /boot > //md[1-6] used for LVM > PV Name /dev/md1 VG Name vg00 > //before: (and above) > sda2 sdb2 md1 vg00 > sda10 sdb10 md7 (unused) > //after: > sda2 sdb2 md1 (unused) > sda10 sdb10 md7 vg00 > > references: > file://vicki/root/upgrades/5.0_lenny_to_6.0_squeeze/ > 0001_a_general_plan_or_outline > 0002_vicki-pre-disk-analysis > 0003_vicki_initial_disk_prep From Michael.Paoli at cal.berkeley.edu Thu Jan 26 18:34:45 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 26 Jan 2012 18:34:45 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades "soon" (approx. 2012-02-06) In-Reply-To: <20120125132555.22663uc1x4l8ocys@webmail.rawbw.com> References: <20120122182544.51094h1y06shsdq8@webmail.rawbw.com> <1327294311.1725.196.camel@jim-LAPTOP> <20120123190535.204043campqx6jac@webmail.rawbw.com> <20120125132555.22663uc1x4l8ocys@webmail.rawbw.com> Message-ID: <20120126183445.39972p5gye40r42s@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] First of all, thanks to all who've expressed interest, volunteered, and/or came to the meeting at Noisebridge yesterday evening. Secondly, from that meeting, lots of good discussion, observations, questions, points, etc. I'll follow-up relatively soon (probably on or by sometime this coming weekend) in more details - both much of what was covered in that meeting, and also a bit more detail / background on the system(s) (notably one physical and 2 virtual) most notably involved in this particular discussion/upgrade project. Thirdly, it was discussed/suggested - and I was thinking also along such lines before said meeting, as for where to "discuss" (email) about/regarding such on-line; fairly simple, protocol, a list that's already relevant, suitable, and fairly high-traffic: SF-LUG and along with that, protocol so those that want to follow the relevant bits on that area of discussion, but may not have time/interest/resources to read or filter through much or most of the other SF-LUG email traffic, a protocol agreement - particular fixed string included in the Subject: headers for all the relevant emails intended to be on/about that topic/project ... Subject: SF-LUG & BALUG: System OS upgrades ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Include the string (without the quotes): "SF-LUG & BALUG: System OS upgrades" in any the Subject: header of any email intended to be on-topic for that particular "thread" (and here I'm *not* using thread in its proper technical sense). One may add more before or after the requisite string in the Subject: header, but it *must* contain the requisite string in the Subject: header if one wants to assure it will be "seen"/read by those wishing to follow the topic. E.g. if your Subject header is: Subject: RE: sf-lug Digest, Vol 72, Issue 25 folks (e.g. me) interested and relevant to the SF-LUG & BALUG: System OS upgrades topic may not read your email (or might catch up to it weeks/month(s) or more later). I'll point "BALUG-Talk" folks that may be interested in following along / participating, over here to the SF-LUG list and this message. Thanks again all - more later (fairly soon). references/excerpts: > From: "Michael Paoli" > Subject: [BALUG-Talk] (6-8p tonight @ Noisebridge) ... SF-LUG & > BALUG: System OS upgrades *soon*(?) - volunteer(s)? [DON'T "REPLY > ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] > Date: Wed, 25 Jan 2012 13:25:55 -0800 > [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] > > And yes, I should be at Noisebridge this evening, 6p-8p. > For those that are interested in the planning/upgrade process, > but can't make it tonight, I'm also planning to attend the next > SF-LUG meeting on 2012-02-05. May also put out some status/summary > emails in the meantime (may or may not also send those to > BALUG-Talk - but will probably at least put pointer(s) on email > to BALUG-Talk where such emails may be found/followed). > >> From: "Michael Paoli" >> Subject: Re: SF-LUG & BALUG: System OS upgrades *soon*(?) - >> volunteer(s)? [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE >> SUBSCRIBED TO BOTH] >> Date: Mon, 23 Jan 2012 19:05:35 -0800 > >> [DON'T "REPLY ALL" TO BOTH LISTS UNLESS YOU'RE SUBSCRIBED TO BOTH] >> >> Jim, thanks for passing this along - thought you might. :-) >> I'm also passing it along to "BALUG-Talk". >> >> Also, I *probably* will make it to Noisebridge this Wednesday >> evening (6-8p). I'll confirm Wednesday afternoon if I'm able to make >> it (and will confirm at *least* an hour in advance (before 5pm), >> and probably a fair bit earlier than that (perhaps before 3pm)). >> >> I'm also intending to make the SF-LUG 2012-02-05 meeting. >> >> Anyway, between those meetings, hopefully we'll have the upgrades pretty >> well planned out and can execute them relatively soon after. >> >> I did also get the host "vicki" a wee bit closer to prepared yesterday. >> Some we reference excerpts added further towards the tail end of this email. >> >> references/excerpts: >> https://www.noisebridge.net/wiki/Visitor_advice >> https://www.noisebridge.net/wiki/Getting_Here >> https://www.noisebridge.net/wiki/LinuxDiscussion >> http://www.sf-lug.com/ >> http://www.balug.org/#Lists >> >>> From: jim >>> Subject: Re: SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? >>> Date: Sun, 22 Jan 2012 20:51:51 -0800 >> >>> >>> >>> I think this is a great volunteer project for anyone >>> who's interested in linux system administration. Let us >>> know if you're interested in helping or learning. >>> We can meet up either at the next regular SF-LUG >>> meeting (Sunday February 5 from 11 AM to 1 PM at the Cafe >>> Enchante on Geary at 26th Ave) or at the Linux Discussion >>> Group meeting at Noisebridge (every Wednesday evening >>> from 6 to 8 PM) or both--don't worry about coordinating >>> between multiple meetings, we'll take care of that. >>> Note that Michael is an expert Linux sys admin with >>> a particularly good sense of best practices. >>> >>> >>> >>> On Sun, 2012-01-22 at 18:25 -0800, Michael Paoli wrote: >>>> SF-LUG & BALUG: System OS upgrades *soon*(?) - volunteer(s)? >>>> >>>> Jim, et. al., >>>> >>>> Do we have a quorum of volunteers (or should we also try to add a person >>>> or two)? In this case, I'm specifically thinking colo box, physical >>>> access and associated systems administration stuff (there's also lots >>>> that can be done mostly remotely). >>>> >>>> Anyway, I see some fairly major upgrades due in our near future. >>>> Impacted are: >>>> SF-LUG: >>>> sflug (guest on vicki, hosts [www.]sf-lug.com) >>>> vicki (host for the above) >>>> BALUG: >>>> vicki (noted above, hosts the immediately below) >>>> balug-sf-lug-v2.balug.org (guest on vicki, hosts lot of BALUG >>>> production) >>>> aladfar.dreamhost.com. (hosted, will be upgraded/replaced for us, hosts >>>> [www.]balug.org, etc.) >>>> >>>> Security support for Debian 5.0 "lenny" ends *soon* (2012-02-06). >>>> To the extent feasible, we should upgrade the relevant systems soon, >>>> preferably before that date, if that's doable, but if not, soon >>>> thereafter. >>>> >>>> Maybe we could plan out the upgrades at an upcoming SF-LUG meeting? >>>> Roughly, I have in mind (what I'd like to do): >>>> o There isn't any official supported upgrade path from i386 to amd64 >>>> o the Silicon Mechanics physical box is and will run amd64/x86_64 >>>> o the Silicon Mechanics physical box supports hardware virtualization >>>> o suitably backup (including on-disk as feasible) >>>> o generally prepare for upgrades >>>> o do "upgrades" as follows: >>>> o vicki: >>>> o backup / move / "shove" stuff around beginning of disk suitably >>>> out-of-the-way (on-disk backups / access to existing data) >>>> o install Debian 6.0.3 (or latest 6.0.x) amd64, using beginning >>>> area(s) of disks, general architecture layout mostly quite as >>>> before (everything mirrored, separate /boot, rest under LVM2, >>>> separate filesystems, etc.) >>>> o install/configure vicki as above to fully support both qemu-kvm, >>>> and xen. Note that on amd64, and with hardware virtualization, >>>> that will allow vicki to support i386 and amd64 images under >>>> qemu-kvm and I believe also xen. >>>> o sflug & balug-sf-lug-v2.balug.org: >>>> o once the above vicki upgrades are done, sflug and >>>> balug-sf-lug-v2.balug.org can be dealt with remotely >>>> o sflug & balug-sf-lug-v2.balug.org can each be dealt with >>>> separately by their primary/lead sysadmin(s) as may be desired, in >>>> general for them, I'd probably recommend proceeding as follows: >>>> o get the existing xen guests running again, more-or-less as they >>>> were (may require some adjustments - most notably boot bits) - >>>> may be advisable to convert them to run under qemu-kvm as soon as >>>> feasible (to avoid guest<-->host kernel, etc. interdependencies) >>>> o upgrade guests to Debian 6.0.3 (or latest 6.0.x) >>>> o optional: change guests from i386 to amd64, use above guests >>>> as reference installations, and do an install/merge to get the >>>> guest(s) as desired to amd64 architecture. >>>> >>>> bit 'o reference/background ;-) ... >>>> >>>> THE END* IS NEAR**! *of security support for Debian GNU/Linux 5.0 >>>> (code name "lenny") **2012-02-06 >>>> >>>> Security support of Debian GNU/Linux 5.0 (code name "lenny") will be >>>> terminated 2012-02-06. >>>> Debian released Debian GNU/Linux 5.0 alias "lenny" 2009-02-14. >>>> Debian released Debian GNU/Linux 6.0 alias "squeeze" 2011-02-06. >>>> >>>> references: >>>> http://lists.debian.org/debian-security-announce/2011/msg00238.html >> >> //or if we present that data a bit differently, to show just how >> //identical the partitioning on the two /dev/sd[ab] disks is: >> Disk /dev/sd[ab]: 30401 cylinders, 255 heads, 63 sectors/track >> Units = sectors of 512 bytes, counting from 0 >> >> Device Boot Start End #sectors Id System >> /dev/sd[ab]1 63 498014 497952 fd Linux raid autodetect >> /dev/sd[ab]2 498015 35648234 35150220 fd Linux raid autodetect >> /dev/sd[ab]10 318472623 375037424 56564802 fd Linux raid autodetect >> >> //excepting extended partition, all logical and non-zero length primary >> //partitions paired up between the sda and sdb devices partisions as md >> //raid1 devices >> >> ///dev/md0 is used for /boot >> sda1 sdb1 md0 >> /dev/md0 241036 57135 171457 25% /boot >> //md[1-6] used for LVM >> PV Name /dev/md1 VG Name vg00 >> //before: (and above) >> sda2 sdb2 md1 vg00 >> sda10 sdb10 md7 (unused) >> //after: >> sda2 sdb2 md1 (unused) >> sda10 sdb10 md7 vg00 >> >> references: >> file://vicki/root/upgrades/5.0_lenny_to_6.0_squeeze/ >> 0001_a_general_plan_or_outline >> 0002_vicki-pre-disk-analysis >> 0003_vicki_initial_disk_prep From Michael.Paoli at cal.berkeley.edu Thu Jan 26 22:38:53 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 26 Jan 2012 22:38:53 -0800 Subject: [sf-lug] multichown (SF-LUG & BALUG: System OS upgrades) Message-ID: <20120126223853.19036a7525gsa28s@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] As mentioned at Noisebridge Wednesday evening, multichown: From: Michael Paoli Sent: Wednesday, December 21, 2011 8:02 AM Subject: quite useful systems administration tool for fixing up ID conflicts: multichown Got UID/GID conflicts? Want to correct them reasonably? Need to preserve that existing system's data? (not feasible to just blow it all away and start from scratch). Have a look a multichown - utility I wrote some years ago. It's very handy for doing most of the "heavy lifting" in correcting UID/GID alignments. It's rather like chown(1), but much more capable of handling quite complex non-overlapping ID reassignments in a single pass (for untangling overlapping ID reassignments, at most two passes would be used with separate specifications - e.g. if GID 110 needs to become GID 127, but also GID 102 needs to become GID 110 after the 110 to 127 changes are done (note the 110 overlap), then two passes are used (in the hairiest of cases, one can use temporary otherwise unused GIDs and/or UIDs as part of intermediary mappings - and that's probably even recommended when the number of overlaps is large)). Very recent use in action. :-) I installed Debian GNU/Linux 6.0.3 "Squeeze" - Official amd64 on my new personal laptop. I also wanted to merge in data from old personal laptop. After doing the installation, between new installation and old laptop, I had UID and GID conflicts. There probably was some way I might've prevented that during the install - but I didn't think about that until later (Debian upgrades work so well I almost never do a fresh install to "upgrade" a system, but instead to the actual upgrade procedure) ... and I didn't want to reinstall again - so ... multichown to the rescue. Essentially: ... and also showing steps relevant for actual production environments: reboot to single user mode, or securely and reversibly lock out all except essential administrative account(s) for doing the conversion, do the ID analysis to figure out what needs to be changed and how (examining /etc/passwd, /etc/group, and generally also recommended to examine UIDs and GIDs on actual filesystems), use one pass, or if needed two passes, of multichown, with suitable arguments, to make the UID/GID changes to all the applicable files, use vipw, vigr, pwconv, grpconv, etc., to suitably update /etc/passwd, /etc/group, and their corresponding shadow files, reboot, reenable accounts, reboot Below is example scripts I used. The bit about "/etc/group only" was comment to myself, about some changes to be applied to /etc/group, but where there were no corresponding group ownerships of files on the filesystems to be changed. In this case, I was doing the remapping on the applicable new filesystems, to match the older (being merged in) data. I did it that way, rather than vice versa, as that older data already matches to additional system(s) where I wish to keep the UIDs and GIDs and also associated names consistently aligned. The scripts I executed (two of 'em, to do it in two passes, due to one overlapping ID change - mutlichown is stateless - thus it can be safely interrupted and later restarted - that's also why it can't directly handle overlapping ID reassignments - but that can be handled manually with just two passes). # expand -t 4 < fixem1 #!/bin/sh multichown=/var/tmp/blackie/home/m/michael/src/IDs/multichown "$multichown" \ --force \ --recursive \ 0,0,103,115,105,117,107,120,109,126,110,127 \ 7,7,109,126 \ 100,122,101,122 \ 101,115,103,115 \ 102,123 \ 103,124,106,124 \ 104,119,107,120 \ / /boot /home /usr /var #,,108,125 #/etc/group only #,,111,128 #/etc/group only #second pass: #0,0,102,110 # expand -t 4 < fixem2 #!/bin/sh multichown=/var/tmp/blackie/home/m/michael/src/IDs/multichown "$multichown" \ --force \ --recursive \ 0,0,102,110 \ / /boot /home /usr /var # The bits further below give more information on multichown's general operation, options/arguments, and some related utilities/materials. todo: wishlist item: add capability to handle GID remappings regarless of UID(s) (e.g. '*,*,fromGID,toGID' to remap GID(s) unconditionally regardless of UIDs) fix the known spellos/typos in the text bits, etc. references/excerpts: multichown - works somewhat similar to chown(1), but handles complex non-overlapping multiple UID/GID remappings, and does so in a single pass. The primary design criteria has been do to UID/GID remappings where large numbers of UIDs/GIDs need to be aligned, e.g. to LDAP, on systems where the UID/GID ownerships aren't already suitably aligned, and to do so in an efficient manner (e.g. for large filesystems that take many hours to traverse, all the changes are made in a single pass). The --help gives a pretty good overview of its functionality: $ multichown --help usage: multichown [--force|-f] [--help|-h|-?] [--nochange|-n] [--noxdev|--nomount] [--recursive|-r|-R] [--verbose [level]|-v [level]] IDspec [IDspec ...] pathname [pathname ...] --force|-f Be forceful - bypass some checks/restrictions. --help|-h|-? Help - provide some basic usage information, overrides other options. --nochange|-n Change nothing, but say what would otherwise be done. --noxdev|--nomount Descend directories on other filesystems. --recursive|-r|-R Recursively descend directories. --verbose [level]|-v [level] Be verbose, optionally specifying verbosity level: -1 not verbose (default if --verbose not used) 0 report items changed (and not changed if --nochange) (default if --verbose used without level) 1 0 and argument processing and report items not changed 2 1 and include diagnostics on options and items processed 3 2 and more diagnostics on options IDspec - ID specification, specifcation of set of ID changes as follows: fromUID,toUID[,fromGID,toGID ...] each ID must be specified as a decimal integer, any UID owned by fromUID will be lchown()ed to be owned by toUID, additionally, if and as specified, if the owning GID is fromGID, it will have the group ownership changed to the immedately following specified toGID pathname - pathname(s) to examine Some of the funky invocation in the script is to deal with working around some flakey (broken) perl installations on systems where more functional installations of perl also exist. news:1156663711.574609.98570 at i3g2000cwc.googlegroups.com http://groups.google.com/groups/search?as_umsgid=1156663711.574609.98570%40i3g2000cwc.googlegroups.com http://mail.pm.org/pipermail/oakland/2006-August/001885.html http://www.rawbw.com/~mp/perl/ From Michael.Paoli at cal.berkeley.edu Thu Jan 26 23:00:11 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 26 Jan 2012 23:00:11 -0800 Subject: [sf-lug] UTC or not to UTC (for system default "local" time) (SF-LUG & BALUG: System OS upgrades) Message-ID: <20120126230011.12756u3hhovfaz8c@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Also mentioned at Noisebridge Wednesday evening. My earlier post on the topic to BUUG: http://www.weak.org/pipermail/buug/2012-January/003913.html And some interesting/noteworthy follow-ups on that list, see: http://www.weak.org/pipermail/buug/2012-January/date.html I don't think it's particularly important point for the particular host OS housing the two VMs (SF-LUG & BALUG), but it does remain an at least open question (and can be reevaluated and/or changed later ... but probably best not to be willy-nilly changing it about). Presently, at least thus far, I'm more inclined, for that particular host and its uses, systems administrators (and potential systems administrators), etc., to probably keep it what's likely a bit "simpler" and less confusing (a bit more "standard"/common in practice - at least thus far, and thus a bit more "expected" - vs. "unexpected"), would be to use the appropriate customary local timezone for the host's physical location. Of course, either way, there are advantages and disadvantages. On my new (as of 2011-12-15) personal laptop, I went with UTC for system default "local" time. And at least thus far, I'm happy with that choice and like/prefer it, though "of course" it does have some (minor) drawbacks. Superuser (root) account, and most anything/everything on that (laptop) host uses UTC. For my own personal individual user account, via one of the startup/login files for the shell, it sets timezone to the customary local timezone (which may change if/when the laptop travels far enough, and/or certain legal bodies muck with stuff yet again). So general "plan" there is mere mortal user accounts (e.g. regular user login accounts) can effectively set TZ for themselves as they wish (might even default creation of such accounts to use customary local TZ by default), but pretty much everything else, including cron/crond, uses UTC. From einfeldt at gmail.com Fri Jan 27 11:32:27 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 27 Jan 2012 11:32:27 -0800 Subject: [sf-lug] Triage fest this Saturday, January 28, 10:00 a.m. to 3:00 pm In-Reply-To: References: Message-ID: Hi, Just a reminder that we will be having a triage fest with Pizza tomorrow at the Creative Arts Charter School! (As opposed to a private charter school). On Tue, Jan 24, 2012 at 6:02 PM, Christian Einfeldt wrote: > Hi, > > Partimus.org will be having a triage fest this Saturday, January 28, > 10:00 a.m. to 3:00 pm, at the Creative Arts Charter School at 1601 Turk > Street, at the corner of Turk and Pierce. This is the school that had that > huge fire on 12/22/11. More about that fire here: > > http://blog.partimus.org/?p=159 > > The purpose of this triage fest is to separate good equipment from bad > equipment and at 2:00 pm, we will move the bad equipment off premises > (assuming that we get a volunteer who has a vehicle, preferably a pick-up > truck). Truck or no truck, we will finish at 3:00 pm. > > Pizza will be served at 12:30 p.m. > > Please bring with you everything that you would need to test a computer > and its peripheral equipment, and to take a computer apart and put it back > together. It would also be good to bring Ubuntu 10.04 on a flash drive, > since we will be installing that distro on some machines. > > This public school relies on our Linux computers heavily for the work that > their students do, so they will definitely appreciate the work! Thanks in > advance to all volunteers! > -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Fri Jan 27 18:08:43 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 27 Jan 2012 18:08:43 -0800 Subject: [sf-lug] New computer equipment donated to Partimus! Message-ID: Hi, I wanted to thank Sameer Verma and So Trinh of SFSU for donating some nice new equipment to Partimus for our use in public schools. So Trinh even went to the effort to install a fresh new 10.04 install on the machines for us! Thanks! Pics of some of the equipment is here. http://blog.partimus.org/?p=197 -------------- next part -------------- An HTML attachment was scrubbed... URL: From jasonstone at gmail.com Fri Jan 27 18:37:44 2012 From: jasonstone at gmail.com (jason stone) Date: Fri, 27 Jan 2012 18:37:44 -0800 Subject: [sf-lug] New computer equipment donated to Partimus! In-Reply-To: References: Message-ID: Yay So & Sameer! 10.04 LTS is the best Ubuntu for download On Jan 27, 2012, at 6:08 PM, Christian Einfeldt wrote: > Hi, > > I wanted to thank Sameer Verma and So Trinh of SFSU for donating some nice new equipment to Partimus for our use in public schools. So Trinh even went to the effort to install a fresh new 10.04 install on the machines for us! Thanks! > > Pics of some of the equipment is here. > > http://blog.partimus.org/?p=197 > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Sat Jan 28 21:09:16 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Sun, 29 Jan 2012 00:09:16 -0500 Subject: [sf-lug] Great work done today installing Linux at a public charter school Message-ID: hi, I just wanted to thank everyone who showed up today to install GNU-Linux machines at the school: Tom Lopes, Grant Bowman, Harley Strazzarino, John Strazzarino, and Asheesh Laroia. It was a great time, and we got a lot of work done. Here is a link to our blog page, where there are some pics of today's events: http://blog.partimus.org/ Here is a permalink to one of the posts about today's work: http://blog.partimus.org/?p=205 Here is a permalink to another post, as I couldn't fit it all into one post: http://blog.partimus.org/?p=224 -------------- next part -------------- An HTML attachment was scrubbed... URL: From sverma at sfsu.edu Sat Jan 28 22:12:36 2012 From: sverma at sfsu.edu (Sameer Verma) Date: Sat, 28 Jan 2012 22:12:36 -0800 Subject: [sf-lug] filesystem for a 3TB external USB drive In-Reply-To: References: Message-ID: On Sun, Dec 18, 2011 at 2:05 PM, Ian Sidle wrote: > If it's for backup purposes, then reliability is your #1 goal, then I would say use fuse-ZFS or ext3. ?ZFS is excellent for long term storage, since there is a large amount of checksums and parity information embedded all over the file structure. > > BTRFS is going to provide a lot of the functionality that is in ZFS and then some but it's going to be quite a while before it is release quality. > > EXT2/3 has been around forever, and never was strong in the performance department but the file system follows the KISS methodology and that has kept it very reliable. > FYI - EXT4 is significantly different then the old linage, and when it was first release there was some reliability issues. ?Since then, I hear it's fairly reliable now but the performance isn't a lot better (and at times worse) then EXT2. > > If you are more interested in performance XFS has always worked really well for me. It caches a lot of information in RAM and waits for the optimal moment to write data to disk in large sequential blocks rather then jumping at the blocks closest to the current location of the drive heads. ?So you can loose some data if the disk cache haven't been flushed and the power goes out, but to an extent that is always a risk anyway with any filesystem. > > ReiserFS was once a contender but once the founder dropped out of the project, development has basically ground to a halt. ?It's good performance for small files but has had problems with larger files and some implementations had reliability issues for a while. I wouldn't trust it for much of anything now because I don't expect there to be much support in the future. > > NTFS is actually an OK choice too. It is significantly more reliable then FAT32 and the mainline linux kernel support has had issues if a drive isn't mounted cleanly the fuse-NTFS is implementation seems to work a lot better in my experience. ?The performance isn't awesome but it's not horrible either, and if you later need to access the drive from Mac/Windows then it will work out of the box without any hassle. > > thanks, > Ian > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > > Ian, and others, I am catching up with this thread and other related e-mails today. I had unwittingly set up my e-mail filter so that it went straight to a SFLUG folder, and not show up on my main inbox on Gmail. No wonder, I didn't see anything, while you all have been discussing eloquently :-) My initial query was about the use of this 3TB Western Digital drive I spoke of, to store daily incremental backups (via dejadup) at home. This isn't for a server, or a Microsoft system, where I need to keep NTFS on it. Thank you so much for your detailed explanation in the thread further on. I think I'll stick with ext3 and get familiar with ZFS-FUSE and btrfs for later. As always, the lists are a treasure trove for information. cheers, Sameer -- Sameer Verma, Ph.D. Professor, Information Systems San Francisco State University http://verma.sfsu.edu/ http://commons.sfsu.edu/ http://olpcsf.org/ From jim at systemateka.com Mon Jan 30 10:25:26 2012 From: jim at systemateka.com (jim) Date: Mon, 30 Jan 2012 10:25:26 -0800 Subject: [sf-lug] GNU Project renews focus on free software in education Message-ID: <1327947926.1699.49.camel@jim-LAPTOP> BOSTON, Massachusetts, USA -- Monday, January 30, 2012 The GNU Project today announced the relaunch of its worldwide volunteer-led effort to bring free software to educational institutions of all levels. The new effort is based at http://www.gnu.org/education Present cases of educational institutions around the world who are successfully using and teaching free software. * Show examples of how free programs are being used by educational institutions to improve the learning and teaching processes. * Publish articles on the various aspects involved in the use of free software by educational institutions. * Maintain a dialogue with teachers, students and administrators of educational institutions to listen to their difficulties and provide support. * Keep in contact with other groups around the world committed to the promotion of free software in education. GNU and its host organization, the Free Software Foundation (FSF), emphasize that free software principles are a prerequisite for any educational environment that uses computers: "Educational institutions of all levels should use and teach free software because it is the only software that allows them to accomplish their essential missions: to disseminate human knowledge and to prepare students to be good members of their community. The source code and the methods of free software are part of human knowledge. On the contrary, proprietary software is secret, restricted knowledge, which is the opposite of the mission of educational institutions. Free software supports education, proprietary software forbids education." In an article at http://fsf.org/blogs/community/gnu-education-website-relaunch [project leader]Scilipoti adds insights about the project's organizing philosophy, current contributors, and progress so far. The Education Team...[is] looking for more volunteer contributors. People who want to help...should contact education at gnu.org. Donate to the Free Software Foundation http://donate.fsf.org About Free and Open Source Software http://www.gnu.org/philosophy/open-source-misses-the-point.html About the GNU OS and Linux http://www.gnu.org/gnu/the-gnu-project.html Follow FSF on identi.ca at http://identi.ca/fsf Subscribe to FSF blogs via RSS at http://fsf.org/blogs/RSS Join us as an associate member at http://fsf.org/jf From bliss-sf4ever at dslextreme.com Mon Jan 30 10:40:22 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 30 Jan 2012 10:40:22 -0800 Subject: [sf-lug] SF-LUG meets next Sunday February 5. Message-ID: <4F26E416.3020401@dslextreme.com> SF-LUG meets on the First Sunday from 11 AM to 1 PM which is Sunday February 5, 2012 at the Cafe Enchante on Geary at 26th Avenue. All meeting times are nominal. This Sunday we can hope to see Ken Schaeffer?s Chumby Internet appliance running GNU/Lnux. Bring your problems and if no one in attendance can solve a problem we know where to find more help. Cafe Enchante is at 6157 Geary Boulevard on the South East corner of Geary and 26th Avenue. (415) 251-9136 If you're coming by bus, take any of the Geary buses west, they run often. Here's a link to a map. http://maps.google.com/maps?hl=en&sugexp=ldymls&xhr=t&cp=17&bav=on.2,or.&um=1&ie=UTF-8&q=cafe+enchante+san+francisco&fb=1&gl=us&hq=cafe+enchante&hnear=San+Francisco,+CA&cid=0,0,9801631951036779628&ei=ldpuTf2SCIS4sAO54Im3Cw&sa=X&oi=local_result&ct=image&resnum=1&sqi=2&ved=0CBUQnwIwAA From Michael.Paoli at cal.berkeley.edu Mon Jan 30 23:22:38 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 30 Jan 2012 23:22:38 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades Message-ID: <20120130232238.7811411rtbi0k3i8@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Anyway, following up more from the discussion at Noisebridge Linux Discussion 2012-01-25 and also general continued planning, and I am also planning to attend SF-LUG 2012-02-05 meeting to discuss this further. So, I created and have updated wiki document, it can be seen here: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze That should be pretty current with most of the relevant details. I believe one can also edit it, if one has or sets oneself up with an account on that wiki. Note that generally under http://www.wiki.balug.org/wiki/ that although there is a fair amount of documentation, etc., some of it is rather to quite out-of-date ... though quite a bit of it still remains rather to quite relevant, and even some of it is quite current. From jbpuig at sbcglobal.net Wed Feb 1 00:19:17 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 1 Feb 2012 00:19:17 -0800 (PST) Subject: [sf-lug] Meeting Reminder - Linux Discussion at Noisebridge Message-ID: <1328084357.50914.YahooMailRC@web83807.mail.sp1.yahoo.com> The Noisebridge Linux Discussion meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From Michael.Paoli at cal.berkeley.edu Wed Feb 1 01:02:04 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Wed, 01 Feb 2012 01:02:04 -0800 Subject: [sf-lug] BALUG: 2012-02-21: OpenPhoto Project - Jaisen Mathai; & other BALUG news Message-ID: <20120201010204.32113zu5v4zm05us@webmail.rawbw.com> BALUG: 2012-02-21: OpenPhoto Project - Jaisen Mathai; & other BALUG news ------------------------------ items, details further below: 2012-02-21: OpenPhoto Project - Jaisen Mathai 2012-03-20: Double-Take Availability for Linux by Vision Solutions book(s), CDs, and other "door prizes", etc. BALUG system upgrades & volunteering to help BALUG ------------------------------ BALUG is proud to announce, for our 2012-02-21 meeting we have: Data portability, the next frontier, and The OpenPhoto Project[1], by Jaisen Mathai[2] Putting users in control of their data means separating data storage from application logic. Doing so opens up possibilities which were previously impossible. Open data will do for the Internet what open source did for computing. Jaisen Mathai[2] is the founder of The OpenPhoto Project[1]: an open source, decentralized and federated photo platform. Prior to starting the project Jaisen was an engineer at [3]Yahoo! and before that he co-founded a photo startup. The OpenPhoto Project was accepted into Mozilla[4]'s WebFWD[8] program. Prior to joining WebFWD the project raised $25,000 on Kickstarter[9]. All of the source code is available on Github[10]. You can find more information about: The OpenPhoto Project at: http://theopenphotoproject.org/ and Jaisen Mathai at: http://www.jaisenmathai.com/ 1. http://theopenphotoproject.org/ 2. http://www.jaisenmathai.com/ 3. http://www.yahoo.com/ 4. http://www.mozilla.org/ 8. https://webfwd.org/ 9. http://www.kickstarter.com/ 10. https://github.com/ So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, February 21st, 2012 2012-02-21 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue). ------------------------------ BALUG is proud to announce, for our 2012-03-20 meeting we have: A technical presentation by Vision Solutions[1] on Double-Take Availability for Linux[2]. Double-Take Availability for Linux is a continuous, byte-level replication and failover software product. As it can monitor changes to any data files, it can protect any application - DB or others. The replication is from source to target server. Each server is licensed and has the software installed. Configuration of what data to replicate and what failover parameters are to be used is accomplished by a universal console that can run on any Windows platform - PC, laptop, server, etc. The console doesn't need to run on the servers being protected. Source and target servers can be in the same room or across any geographic distance - over any TCP/IP network. As Availability is considered a high availability product, RPOs are typically in the near-zero range because the data changes are captured and transmitted continuously. RTO (or failover) is typically in the seconds to minutes range. Vision Solutions currently supports most releases of RHEL, Oracle Linux, CentOS, SUSE with the Ext and XFS file systems. These distributions are supported on physical and virtual environments. Here is a short data sheet on the product: http://pdf.visionsolutions.com/pdfs/us-double-take-availability-for-linux.pdf and website has several white papers also: http://www.visionsolutions.com/Popular-Resources/Whitepapers.aspx 1. http://www.visionsolutions.com/ 2. http://www.visionsolutions.com/Products/DT-Avail-Lin.aspx ------------------------------ book(s), CDs, and other "door prizes", etc. Book(s) - from No Starch Press, we received for review: _The Linux Command Line_ A Complete Introduction by William E. Shotts, Jr. January 2012, 480 pp. ISBN: 978-1-59327-389-7 http://www.nostarch.com/tlcl.htm Additional goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ BALUG system upgrades & volunteering to help BALUG BALUG has some system upgrades (mostly operating system upgrades) coming in its future. For most of the information on that, have a look at posts on or after 2012-01-22 on the SF-LUG[1] list[2] with the string: SF-LUG & BALUG: System OS upgrades in the Subject: header Want to volunteer to help out BALUG? (quite a variety of opportunities exist, including the above) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. 1. http://www.sf-lug.com/ http://www.sf-lug.org/ 2. http://linuxmafia.com/mailman/listinfo/sf-lug ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From Michael.Paoli at cal.berkeley.edu Thu Feb 2 05:56:41 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 02 Feb 2012 05:56:41 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades - xen --> qemu-kvm tested & documented Message-ID: <20120202055641.707478z8xolbf50k@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Latest bits: completed testing and essentially documenting xen --> qemu-kvm conversion: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze#xen_--_qemu-kvm_specific_example_sflug More background, etc. may be generally found on that wiki page noted above. From lyz at princessleia.com Fri Feb 3 19:44:02 2012 From: lyz at princessleia.com (Elizabeth Krumbach) Date: Fri, 3 Feb 2012 19:44:02 -0800 Subject: [sf-lug] Wednesday, February 8th: San Francisco Ubuntu Hour and Bay Area Debian Meeting Message-ID: Hi everyone, Just like in December, we've decided to sync up our monthly San Francisco Ubuntu Hour with the 2nd Wednesday date of the Bay Area Debian Meeting, to offer an evening of Ubuntu and Debian! So this Wednesday, February 8th, the plan is as follows: First, from 6-7PM: San Francisco Ubuntu Hour Location: The Roastery, 199 New Montgomery Street, San Franciso Details: http://loco.ubuntu.com/events/ubuntu-california/1514/detail/ Then, from 7-9PM: Bay Area Debian Meeting Location: Henry's Hunan Restaurant, 110 Natoma Street, San Francisco Details: http://bad.debian.net/list/2012-February/003482.html So come out to the Ubuntu Hour and join us for dinner at the Bay AreaDebian Meeting! To find us at both events, look for the people in the LinuxshirtsUbuntu CDs and the penguin, Squeeze and Wheezy stuffed toys.AtHenry's Hunan we'll have reservations under "Bay Area Debian" Hope to see you there! -- Elizabeth Krumbach // Lyz // pleia2 http://www.princessleia.com From Michael.Paoli at cal.berkeley.edu Sat Feb 4 19:41:24 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sat, 04 Feb 2012 19:41:24 -0800 Subject: [sf-lug] Michael Paoli @ SF-LUG tomorrow (Re: SF-LUG & BALUG: System OS upgrades, etc.) Message-ID: <20120204194123.11147l9bldnld4ow@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Yes, I'll be at the SF-LUG meeting tomorrow. In general, planning/hoping to do some more overview/review/discussion/planning/etc., of the SF-LUG & BALUG: System OS upgrades project, ... mostly rather a logical continuation of the earlier meeting and discussion at the Noisebridge Linux discussion[1]. For more information/background, and to (mostly) catch up on the latest (or at least approximately so), have a look at: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze Oh, fairly likely I'll drag along some CDs[2], and possibly some other goodies that folks might possibly be interested in. references/excerpts/footnotes: 1. http://linuxmafia.com/pipermail/sf-lug/2012q1/009182.html http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze 2. http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc From Michael.Paoli at cal.berkeley.edu Mon Feb 6 07:18:15 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 06 Feb 2012 07:18:15 -0800 Subject: [sf-lug] Debian Edu (Setting up a new school with Debian Edu/Squeeze - new tool which allows all the computers of a school to be quickly set up with a minimal number of manual steps) Message-ID: <20120206071815.1740201f95eicen4@webmail.rawbw.com> In case some folk(s) on this list may be interested: Setting up a new school with Debian Edu/Squeeze ----------------------------------------------- Petter Reinholdtsen announced on his blog that the next version of Debian Edu/Squeeze will contain a new tool, called sitesummary2ldapdhcp [9], which allows all the computers of a school to be quickly set up with a minimal number of manual steps. Once the central server is installed, this tool collects data from the network to generate system objects in the LDAP database. After a few modifications of the configuration from a GUI, the network of computers is ready to use. A third beta version of Debian Edu based on "Squeeze" and containing this tool has just been released. 9 : http://people.skolelinux.org/pere/blog/Setting_up_a_new_school_with_Debian_Edu_Squeeze.html references: http://www.debian.org/News/weekly/2012/03/#debianedu http://wiki.debian.org/DebianEdu http://www.skolelinux.org/ From anth1y at gmail.com Mon Feb 6 17:47:12 2012 From: anth1y at gmail.com (Anthony Riley) Date: Mon, 6 Feb 2012 17:47:12 -0800 Subject: [sf-lug] Looking for some Networking classes/ Training Message-ID: Good Evening, I was just recently hired as a sysadmin for Usenix. Part of my duties is to travel to various conference sites (at hotels) and set up wired/ wireless network. My boss just asked me to look into getting some networking classes so I can be more proficient in supporting our network(s). So I was wondering if anyone knew of some companies that might be able to offer a course/training at non-profit prices. Most of our routers and switches are Cisco/ Linksys. On the wireless side have some Merakis and Xirrus and Cisco AP's. I'm open for any suggestions thanks Thanks, Anthony -- Anthony Riley II (415)407.9687 Linux user #521929 http://counter.li.org/! -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbpuig at sbcglobal.net Tue Feb 7 10:58:18 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Tue, 7 Feb 2012 10:58:18 -0800 (PST) Subject: [sf-lug] Meeting Reminder - Linux Discussion at Noisebridge Message-ID: <1328641098.43928.YahooMailRC@web83805.mail.sp1.yahoo.com> The Noisebridge Linux Discussion meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From joebaker at dcresearch.com Tue Feb 7 11:57:24 2012 From: joebaker at dcresearch.com (Joe Baker) Date: Tue, 07 Feb 2012 11:57:24 -0800 Subject: [sf-lug] Unity Desktop Meets Avant Window Navigator - JOY! Message-ID: <4F318224.1010303@dcresearch.com> The Unity Desktop has been really hard for me this last month. With the stresses of a new job, the last thing I needed was to have my window navigation features stripped from me and changed. Well along the way I found a couple of new features that help some people. The Super key is that one with the windows logo on it.... Super-W shrinks all your windows so you can click on the one you want to bring forward. But using Alt-Tab and Alt "`" just wasn't cutting it for me when I usually have about 30 windows opened on the desktop that remain opened for weeks at a time. ENTER.... Avant Windows Navigator ====================== So today I finally reached the point where I was going to solve this problem... Surely somewhere in the "Ubuntu software Center" there had to be some sort of program which would solve my navigtation woes. This tool gives us icons along the bottom of the screen like the Macintosh has.. You can click on it's firefox icon and a list of title windows comes up where you can read what the active tab of the windows tells you for all the firefox windows. This is a huge relief. Once again I'm proud of my Linux Desktop Joe From alchaiken at gmail.com Tue Feb 7 12:17:12 2012 From: alchaiken at gmail.com (Alison Chaiken) Date: Tue, 7 Feb 2012 12:17:12 -0800 Subject: [sf-lug] Looking for some Networking classes/ Training Message-ID: I recommend these classes: http://www.ucsc-extension.edu/programs/network-engineering/schedule Most are available on-line, although classroom is always better. I've taken 7 classes at UCSC Extension and 6 of them were a good value. I've heard that the networking intro class is great but have not taken it myself. HTH, Alison -- Alison Chaiken (650) 279-5600? (cell) ? ? ? ? ? ?? http://www.exerciseforthereader.org/ "Laws only declare rights; they do not deliver them." Happy Birthday, Dr. King. From Michael.Paoli at cal.berkeley.edu Thu Feb 9 13:03:07 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 09 Feb 2012 13:03:07 -0800 Subject: [sf-lug] "soon"- SF-LUG & BALUG: System OS upgrades (Feb. 22? 23? 24?) Message-ID: <20120209130307.18194g8pxqey6wmc@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Per continued discussion at (and a bit after) last SF-LUG meeting on 2012-02-05, we're still planning to do these key system upgrades fairly soon - mostly likely the evening of 2012-02-22, 2012-02-23 or 2012-02-24 (or possibly later, if need be). Security support of Debian GNU/Linux 5.0 alias "Lenny" has ended[1], so, to the extent feasible, doing these "upgrades" sooner, rather than later, is generally a *good thing*. If you're interested and available for the onsite work to be done (or in general on these "upgrades") let Jim Stockford and/or myself know, so, as feasible, we may be able to coordinate - at least if you're also interested in the onsite portion. The general game plan is pretty well mapped out[2] at this point (though I should still get the documentation a wee bit more caught up). references/excerpts/footnotes: 1. http://www.debian.org/News/2012/20120209 2. http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze From sverma at sfsu.edu Fri Feb 10 20:41:07 2012 From: sverma at sfsu.edu (Sameer Verma) Date: Fri, 10 Feb 2012 20:41:07 -0800 Subject: [sf-lug] Fwd: [Server-devel] XS-0.7 ready for early testing In-Reply-To: References: Message-ID: Sorry about the short notice, but OLPC San Francisco meets tomorrow, and we are hoping to test a freshly-baked version of the OLPC XS School Server (based on CentOS 6.2). If you are interested in helping out with testing this version (mostly clean install and basic server config), please come by! OLPC San Francisco meets from 10AM to 2PM on Saturday, February 11, 2012 at the SF State University Downtown Campus. 835 Market St, #553 San Francisco, CA 94103 http://olpcsf.org/ cheers, Sameer ---------- Forwarded message ---------- From: Sameer Verma Date: Fri, Feb 10, 2012 at 8:00 PM Subject: Fwd: [Server-devel] XS-0.7 ready for early testing To: OLPC SF It looks like a build for School Server 0.7 is now available for testing. This version is based on CentOS 6.2. I'll bring a couple of machines with me to tomorrow's meeting. Once wear done with the usual updates, we can help out with testing. I have a OLPCorps SolidLogic model, a FitPC2 and a Fujitsu P2120. Anyone else interested in helping out with testing? cheers, Sameer ---------- Forwarded message ---------- From: Daniel Drake Date: Fri, Feb 10, 2012 at 2:27 PM Subject: [Server-devel] XS-0.7 ready for early testing To: XS Devel Hi, The CentOS-based XS-0.7 is ready for early testing. I haven't produced install media yet (hopefully tomorrow!) but the "alternative" install method is now possible, where you install the XS stuff on top of a CentOS installation. Install CentOS 6.2 (minimal install will do) and then follow these instructions: http://wiki.laptop.org/go/XS_Installing_Software_0.7#Installing_on_top_of_existing_OS_installation Thanks for any feedback! Daniel _______________________________________________ Server-devel mailing list Server-devel at lists.laptop.org http://lists.laptop.org/listinfo/server-devel From bliss-sf4ever at dslextreme.com Mon Feb 13 09:38:11 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 13 Feb 2012 09:38:11 -0800 Subject: [sf-lug] SF-LUG meets on Monday 20 February Message-ID: <4F394A83.30109@dslextreme.com> SF-LUG meets on the Third Monday from 6-8 PM at the Cafe Enchante on Geary at 26th Avenue. All meeting times are nominal. Bring your problems and if no one in attendance can solve a problem we know where to find more help. ============== At the meeting on Sunday 5 February Michael showed up first then Ken Schaeffer and his wife, a while later Jim Stockford, Eric Porter and Jeff. Ken demoed the Chumby, an Internet radio appliance running Linux. Using USB connectors a keyboard and other peripherals can be attached but it has a very low ram memory of 256 MB and only a very small screen of limited resolution but it can be used with other storage to do lots of things that are not docmented. I have Ken?s full notes on what he did with the Chumby if anyone is interested. Oh and the Chumby can be found at low prices. Jim and Michaei discussed the changes to be made yet to the server at the SF-LUG web site and mail server. ============== Cafe Enchante is at 6157 Geary Boulevard on the South East corner of Geary and 26th Avenue. (415) 251-9136 If you're coming by bus, take any of the Geary buses west, they run often. Here's a link to a map. http://maps.google.com/maps?hl=en&sugexp=ldymls&xhr=t&cp=17&bav=on.2,or.&um=1&ie=UTF-8&q=cafe+enchante+san+francisco&fb=1&gl=us&hq=cafe+enchante&hnear=San+Francisco,+CA&cid=0,0,9801631951036779628&ei=ldpuTf2SCIS4sAO54Im3Cw&sa=X&oi=local_result&ct=image&resnum=1&sqi=2&ved=0CBUQnwIwAA From Michael.Paoli at cal.berkeley.edu Tue Feb 14 06:09:43 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Tue, 14 Feb 2012 06:09:43 -0800 Subject: [sf-lug] got date?, & doc. updates: SF-LUG & BALUG: System OS upgrades Message-ID: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Jim, et. al. - let me know: Got date for doing this upgrade? How 'bout evening of: 2012-02-22 (W), 2012-02-23 (Th), or 2012-02-24 (F) Let me know. "Soon" would be good ... but I've got oncall through next M A.M., 2012-02-20 is SF-LUG meeting & President's Day, 2012-02-21 is BALUG. So, that puts us to W (or Th, or F) (and most of the time I don't venture to S.F. on the weekends, as I'm already typically there M-F). Also, I've updated a fair bit more of the "upgrade" documentation/plan stuff: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze Should be pretty complete at this point. I've documented in fair bit of detail the sflug Xen domU --> qemu-kvm conversion process. I've not detailed the balug guest conversion in detail - it would be relatively similar anyway, and can be done remotely - the balug guest doesn't have quite the uptime requirements of the sflug guest (upon which sf-lug.com. depends). Though the balug guest also has much production stuff, for the most part it doesn't have any hard realtime direct dependencies. From jbpuig at sbcglobal.net Wed Feb 15 07:39:20 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 15 Feb 2012 07:39:20 -0800 (PST) Subject: [sf-lug] Meeting Reminder - Linux Discussion at Noisebridge Message-ID: <1329320360.98675.YahooMailRC@web83804.mail.sp1.yahoo.com> The Noisebridge Linux Discussion meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From Michael.Paoli at cal.berkeley.edu Tue Feb 21 07:00:47 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Tue, 21 Feb 2012 07:00:47 -0800 Subject: [sf-lug] REMINDER: BALUG TODAY Tu 2012-02-21: OpenPhoto Project - Jaisen Mathai; & other BALUG news Message-ID: <20120221070047.736525gd7cbyqyzk@webmail.rawbw.com> REMINDER: BALUG TODAY Tu 2012-02-21: OpenPhoto Project - Jaisen Mathai; & other BALUG news ------------------------------ items, details further below: TODAY Tu 2012-02-21: OpenPhoto Project - Jaisen Mathai 2012-03-20: Double-Take Availability for Linux by Vision Solutions book(s), CDs, and other "door prizes", etc. BALUG system upgrades & volunteering to help BALUG Follow BALUG on Twitter! ------------------------------ BALUG is proud to announce, for our 2012-02-21 meeting TODAY we have: Data portability, the next frontier, and The OpenPhoto Project[1], by Jaisen Mathai[2] Putting users in control of their data means separating data storage from application logic. Doing so opens up possibilities which were previously impossible. Open data will do for the Internet what open source did for computing. Jaisen Mathai[2] is the founder of The OpenPhoto Project[1]: an open source, decentralized and federated photo platform. Prior to starting the project Jaisen was an engineer at [3]Yahoo! and before that he co-founded a photo startup. The OpenPhoto Project was accepted into Mozilla[4]'s WebFWD[8] program. Prior to joining WebFWD the project raised $25,000 on Kickstarter[9]. All of the source code is available on Github[10]. You can find more information about: The OpenPhoto Project at: http://theopenphotoproject.org/ and Jaisen Mathai at: http://www.jaisenmathai.com/ 1. http://theopenphotoproject.org/ 2. http://www.jaisenmathai.com/ 3. http://www.yahoo.com/ 4. http://www.mozilla.org/ 8. https://webfwd.org/ 9. http://www.kickstarter.com/ 10. https://github.com/ So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, February 21st, 2012 2012-02-21 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue). ------------------------------ BALUG is proud to announce, for our 2012-03-20 meeting we have: A technical presentation by Vision Solutions[1] on Double-Take Availability for Linux[2]. Double-Take Availability for Linux is a continuous, byte-level replication and failover software product. As it can monitor changes to any data files, it can protect any application - DB or others. The replication is from source to target server. Each server is licensed and has the software installed. Configuration of what data to replicate and what failover parameters are to be used is accomplished by a universal console that can run on any Windows platform - PC, laptop, server, etc. The console doesn't need to run on the servers being protected. Source and target servers can be in the same room or across any geographic distance - over any TCP/IP network. As Availability is considered a high availability product, RPOs are typically in the near-zero range because the data changes are captured and transmitted continuously. RTO (or failover) is typically in the seconds to minutes range. Vision Solutions currently supports most releases of RHEL, Oracle Linux, CentOS, SUSE with the Ext and XFS file systems. These distributions are supported on physical and virtual environments. Here is a short data sheet on the product: http://pdf.visionsolutions.com/pdfs/us-double-take-availability-for-linux.pdf and website has several white papers also: http://www.visionsolutions.com/Popular-Resources/Whitepapers.aspx 1. http://www.visionsolutions.com/ 2. http://www.visionsolutions.com/Products/DT-Avail-Lin.aspx ------------------------------ book(s), CDs, and other "door prizes", etc. Book(s) - from No Starch Press, we received for review: _The Linux Command Line_ A Complete Introduction by William E. Shotts, Jr. January 2012, 480 pp. ISBN: 978-1-59327-389-7 http://www.nostarch.com/tlcl.htm Additional goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ BALUG system upgrades & volunteering to help BALUG BALUG has some system upgrades (mostly operating system upgrades) coming in its future. For most of the information on that, have a look at posts on or after 2012-01-22 on the SF-LUG[1] list[2] with the string: SF-LUG & BALUG: System OS upgrades in the Subject: header Want to volunteer to help out BALUG? (quite a variety of opportunities exist, including the above) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. 1. http://www.sf-lug.com/ http://www.sf-lug.org/ 2. http://linuxmafia.com/mailman/listinfo/sf-lug ------------------------------ Follow BALUG on Twitter! You can follow us on Twitter: BALUG_org ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From john_re at fastmail.us Tue Feb 21 15:44:52 2012 From: john_re at fastmail.us (giovanni_re) Date: Tue, 21 Feb 2012 15:44:52 -0800 Subject: [sf-lug] Fwd: [BALUG-Talk] Root & ROM Android cellphone tonight @ BALUG. Help. Thx. Message-ID: <1329867892.29658.140661039592869@webmail.messagingengine.com> @ BALUG tonight. :) = Have you rooted &/or ROMed an android device? Come help me tonight with a Samsung Intercept. Would like to get wifi tethering working. Maybe a Cyanogenmod ROM. Hope to be at BALUG about 6PM. Any suggestions? Thanks. :) == Phone info: Model: SPH-M910 Android version: 2.2.2 Baseband version: S:M910.05 S.EC07 Kernel: 2.6.32.9 Build: Froyo.EC07 Hardware: M910.05 ===== http://wiki.sdx-developers.com/index.php/Rooting_android_2.2 http://wiki.sdx-developers.com/index.php/Roms http://wiki.sdx-developers.com/index.php/Virgin_Mobile_Intercept_2.2_Issues ===== Samsung Intercept Forums: http://forum.sdx-developers.com/#c16 Re: Instructions on Rooting Sprint Samsung Intercept - 18K reads http://forum.sdx-developers.com/?topic=10388.0 Intercept Root Apk and Recovery flasher http://forum.sdx-developers.com/?topic=15586.0 [ROM] Fable_ROM 1.0 EC07 (Original by Ceasar) http://forum.sdx-developers.com/?topic=18893.0 Re: CM7 - Alpha 3 [UPDATED 1/28] http://forum.sdx-developers.com/?topic=18996.0 Re: [IcePop_v2.0]--VM--EC07 ONLY::2/13/12 http://forum.sdx-developers.com/?topic=19172.0 Recommended Rom and Kernel for Samsung right now? http://forum.sdx-developers.com/?topic=19232.0 sAMSUNG INTERCEPT HELP NOOB! http://forum.sdx-developers.com/?topic=19309.0 ===== GingerBreak Exploit apk for Samsung Intercept http://code.google.com/p/intercept-root/ == Smartphone Debian: http://wiki.debian.org/Smartphone Join in the Global monthly meetings, via voice, about all Free SW HW & Culture: http://sites.google.com/site/berkeleytip/ http://groups.google.com/group/BerkTIPGlobal - Join the mail list. :) _______________________________________________ BALUG-Talk mailing list BALUG-Talk at lists.balug.org http://lists.balug.org/listinfo.cgi/balug-talk-balug.org == Smartphone Debian: http://wiki.debian.org/Smartphone Join in the Global monthly meetings, via voice, about all Free SW HW & Culture: http://sites.google.com/site/berkeleytip/ http://groups.google.com/group/BerkTIPGlobal - Join the mail list. :) From Michael.Paoli at cal.berkeley.edu Wed Feb 22 06:44:45 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Wed, 22 Feb 2012 06:44:45 -0800 Subject: [sf-lug] got date: M eve. 2012-02-27: SF-LUG & BALUG: System OS upgrades In-Reply-To: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> References: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> Message-ID: <20120222064445.11295kf48178irgg@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] I spoke with Jim yesterday P.M., and we've scheduled the evening of Monday 2012-02-27 for the on-site portions of the install/upgrade work. Precise time to be worked out, but I believe we'd be starting this work sometime after 5:00 P.M. references/excerpts: > From: "Michael Paoli" > Subject: got date?, & doc. updates: SF-LUG & BALUG: System OS upgrades > Date: Tue, 14 Feb 2012 06:09:43 -0800 > [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within > Subject: header for folks to follow on this topic] > > Jim, et. al. - let me know: > Got date for doing this upgrade? How 'bout evening of: > > Also, I've updated a fair bit more of the "upgrade" documentation/plan > stuff: > http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze > Should be pretty complete at this point. I've documented in fair bit > of detail the sflug Xen domU --> qemu-kvm conversion process. I've not > detailed the balug guest conversion in detail - it would be relatively > similar anyway, and can be done remotely - the balug guest doesn't have > quite the uptime requirements of the sflug guest (upon which sf-lug.com. > depends). Though the balug guest also has much production stuff, for > the most part it doesn't have any hard realtime direct dependencies. From jbpuig at sbcglobal.net Wed Feb 22 10:22:43 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 22 Feb 2012 10:22:43 -0800 (PST) Subject: [sf-lug] Meeting Reminder - SF-LUG Linux Discussion at Noisebridge Message-ID: <1329934963.43223.YahooMailRC@web83815.mail.sp1.yahoo.com> The SF-LUG Linux Discussion at Noisebridge meets on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From jim at systemateka.com Thu Feb 23 08:49:47 2012 From: jim at systemateka.com (jim) Date: Thu, 23 Feb 2012 08:49:47 -0800 Subject: [sf-lug] February BayPIGgies meeting: Thursday, February 23, 2012: Data Visualization with Pyprocessing Message-ID: <1330015787.1702.56.camel@jim-LAPTOP> February BayPIGgies meeting: Thursday, February 23, 2012: Data Visualization with Pyprocessing Speaker: Simeon Franklin Abstract: I aim to briefly cover the concept of data visualisations with a couple of inspiring examples, describe the popular data visualization tool "Processing" and introduce pyprocessing, a port of the Processing drawing API to Python, by way of a couple of example programs I've written. I'll share the lessons I've learned so far in creating data visualizations and discuss some drawbacks/workarounds specific to pyprocessing. Simeon Franklin: I am a long time software developer, a long time Baypiggy, and recently became a full-time Python instructor for Marakana. I like to fool around with Python in my spare time :) ......................................... LOCATION Symantec Corporation Symantec Vcafe 350 Ellis Street Mountain View, CA 94043 http://maps.google.com/maps/ms?oe=utf-8&client=firefox-a&ie=UTF8&fb=1&split=1&gl=us&ei=w6i_Sfr6MZmQsQOzlv0v&hl=en&t=h&msa=0&msid=116202735295394761637.00046550c09ff3d96bff1&ll=37.397693,-122.053707&spn=0.002902,0.004828&z=18 BayPIGgies meeting information is available at http://www.baypiggies.net/ ------------------------ Agenda ------------------------ ..... 7:30 PM ........................... General hubbub, inventory end-of-meeting announcements, any first-minute announcements. ..... 7:35 PM to 7:45 PM (or so) ................ Lightning Talk: Hacking ipython notebook for developing interactive visualization by Jason Chin ..... 7:45 PM to 8:45 PM (or so) ................ The main talk: Data Visualization with Pyprocessing ..... 8:45 PM to 8:55 PM (or so) ................ Questions and Answers ..... 8:55 PM to 9:30 PM (or so) ................ Mapping and Random Access Mapping is a rapid-fire audience announcement of issues, hiring, events, and other topics. Random Access follows people immediately to allow follow up on the announcements and other interests. From jim at systemateka.com Thu Feb 23 09:17:29 2012 From: jim at systemateka.com (jim) Date: Thu, 23 Feb 2012 09:17:29 -0800 Subject: [sf-lug] got date: M eve. 2012-02-27: SF-LUG & BALUG: System OS upgrades In-Reply-To: <20120222064445.11295kf48178irgg@webmail.rawbw.com> References: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> <20120222064445.11295kf48178irgg@webmail.rawbw.com> Message-ID: <1330017449.1702.76.camel@jim-LAPTOP> Now that I've seen my schedule, it looks like it will definitely be sometime after 6 PM. jim On Wed, 2012-02-22 at 06:44 -0800, Michael Paoli wrote: > [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within > Subject: header for folks to follow on this topic] > > I spoke with Jim yesterday P.M., and we've scheduled the evening of > Monday 2012-02-27 for the on-site portions of the install/upgrade work. > Precise time to be worked out, but I believe we'd be starting this work > sometime after 5:00 P.M. > > references/excerpts: > > > From: "Michael Paoli" > > Subject: got date?, & doc. updates: SF-LUG & BALUG: System OS upgrades > > Date: Tue, 14 Feb 2012 06:09:43 -0800 > > > [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within > > Subject: header for folks to follow on this topic] > > > > Jim, et. al. - let me know: > > Got date for doing this upgrade? How 'bout evening of: > > > > Also, I've updated a fair bit more of the "upgrade" documentation/plan > > stuff: > > http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze > > Should be pretty complete at this point. I've documented in fair bit > > of detail the sflug Xen domU --> qemu-kvm conversion process. I've not > > detailed the balug guest conversion in detail - it would be relatively > > similar anyway, and can be done remotely - the balug guest doesn't have > > quite the uptime requirements of the sflug guest (upon which sf-lug.com. > > depends). Though the balug guest also has much production stuff, for > > the most part it doesn't have any hard realtime direct dependencies. > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From nk.oorda at gmail.com Sat Feb 25 21:05:00 2012 From: nk.oorda at gmail.com (nk oorda) Date: Sun, 26 Feb 2012 10:35:00 +0530 Subject: [sf-lug] CentOS for Production (CentOS 6.0 Vs 6.1 Vs 6.2) Message-ID: Hi We are currently using CentOS 5.3 for production systems. The application/software/package we are using mainly: - Apache - Tomcat - SOLR - Mysql We are in process to upgrade the CentOS. What would be the best CentOS candidate for upgrade (CentOS 6.0 Vs 6.1 Vs 6.2) We are using both physical and virtual system. Best Regards NK -------------- next part -------------- An HTML attachment was scrubbed... URL: From Michael.Paoli at cal.berkeley.edu Sun Feb 26 00:34:01 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sun, 26 Feb 2012 00:34:01 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades - more details ;-) In-Reply-To: <20120222064445.11295kf48178irgg@webmail.rawbw.com> References: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> <20120222064445.11295kf48178irgg@webmail.rawbw.com> Message-ID: <20120226003401.49853h9e8fqlpzsw@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] I've put yet more details (plus some corrections and updates) on the wiki page: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze#vicki_host_install_upgrade_procedure_outline_select_details most of the added bits in the section noted at URL above - essentially mostly covers more detail of procedure to "upgrade" (install + merge) existing host operating system for vicki. Looks like we should be all set to do this Monday evening sometime after about 6 P.M. I'd guestimate altogether, including through bringing sflug VM guest up under qemu-kvm will probably take several hours or so. Nice to have a VM environment to run dry-run tests/simulations of most all of this on. :-) From Michael.Paoli at cal.berkeley.edu Sun Feb 26 08:09:32 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sun, 26 Feb 2012 08:09:32 -0800 Subject: [sf-lug] SF-LUG & BALUG: System OS upgrades - sf-lug.com downtime? What downtime? ; -) In-Reply-To: <20120226003401.49853h9e8fqlpzsw@webmail.rawbw.com> References: <20120214060943.13214rdooiyfjv28@webmail.rawbw.com> <20120222064445.11295kf48178irgg@webmail.rawbw.com> <20120226003401.49853h9e8fqlpzsw@webmail.rawbw.com> Message-ID: <20120226080932.18490xfnizjna4og@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Submitted for your consideration: As I'll be bringing my linux laptop anyway ... To further minimize (apparent) downtime for [www.]sf-lug.com and its DNS: I can (temporarily) have the http and DNS services for [www.]sf-lug.com hosted on my linux laptop on the relevant IP(s). Easy enough to do :-) I'll presume we'll want to do that, and will prepare for such. That should then leave [www.]sf-lug.com with only very short apparent downtimes for http and DNS. From Michael.Paoli at cal.berkeley.edu Sun Feb 26 20:10:58 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sun, 26 Feb 2012 20:10:58 -0800 Subject: [sf-lug] SF-LUG.COM DOWNTIME(S) (M eve. ... SF-LUG & BALUG: System OS upgrades) Message-ID: <20120226201058.621828j9gjtc5a3o@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] Perhaps not for long[1], but we have maintenance worked planned for this Monday evening, starting after 6:00 P.M. PST, that will cause downtimes for sf-lug.com, including www.sf-lug.com. This maintenance work WILL NOT IMPACT the SF-LUG list (http://linuxmafia.com/mailman/listinfo/sf-lug). It is anticipated this phase of the maintenance work will most likely be concluded by 11:30 P.M. Monday. references: 1. http://linuxmafia.com/pipermail/sf-lug/2012q1/009217.html messages on: http://linuxmafia.com/pipermail/sf-lug/2012q1/date.html with "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header etc. From bliss-sf4ever at dslextreme.com Mon Feb 27 15:00:49 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 27 Feb 2012 15:00:49 -0800 Subject: [sf-lug] SF-LUG meets on Sunday March 4, 2012 Message-ID: <4F4C0B21.7060107@dslextreme.com> SF-LUG meets on the First Sunday from 11 AM to 1 PM at the Cafe Enchante on Geary at 26th Avenue. All meeting times are nominal. Previous meeting was lightly attended by only 4 people and while the discussion was interesting nothing of particular note was touched on. Bring your problems and if no one in attendance can solve a problem we know where to find more help. Cafe Enchante is at 6157 Geary Boulevard on the South East corner of Geary and 26th Avenue. (415) 251-9136 If you're coming by bus, take any of the Geary buses west, they run often. Here's a link to a map. http://maps.google.com/maps?hl=en&sugexp=ldymls&xhr=t&cp=17&bav=on.2,or.&um=1&ie=UTF-8&q=cafe+enchante+san+francisco&fb=1&gl=us&hq=cafe+enchante&hnear=San+Francisco,+CA&cid=0,0,9801631951036779628&ei=ldpuTf2SCIS4sAO54Im3Cw&sa=X&oi=local_result&ct=image&resnum=1&sqi=2&ved=0CBUQnwIwAA From Michael.Paoli at cal.berkeley.edu Tue Feb 28 03:57:44 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Tue, 28 Feb 2012 03:57:44 -0800 Subject: [sf-lug] [www.]sf-lug.com up again, etc.: SF-LUG & BALUG: System OS upgrades Message-ID: <20120228035744.123419vbvnlm1j6s@webmail.rawbw.com> [include: "SF-LUG & BALUG: System OS upgrades" (less quotes) within Subject: header for folks to follow on this topic] [www.]sf-lug.com is up again, the VM guest has been converted from guest under Xen to guest under qeum-kvm. The sf-lug.com guest host is, in most other regards, as it was before. There are still the updates/upgrades, etc. to do for the sf-lug.com VM guest, but now that it's under qemu-kvm, and its host vicki has been upgraded/updated from Debian GNU/Linux 5.0.9 i386 to Debian GNU Linux 6.0.4 amd64, work can proceed on the sf-lug.com guest remotely, and at most any suitably convenient time. There's still some follow-on work to do on host vicki (e.g. suitably merging in older vicki data, etc.), but no downtime is presently anticipated as being needed for any of that. The procedures took a bit longer than anticipated. We ran into two glitches that sucked up some extra time: o a flakey Ethernet cable connection (replacing the cable took care of that). o In the Debian installation, there was an option to go back and review disk configuration ... that didn't work very well at all, got quite stuck. We terminated that portion of the install process, and tried several times to repeat it, but that didn't work - once it got stuck the first time, it continued to stick at same point when we tried to re-run through those steps. We ended up restarting the install process, mostly repeating the earlier steps - 2nd time through (and without taking the option to go back and review disk configuration), installation proceeded smoothly. o additionally, since things ran a bit late, I also ended up relocating before continuing to complete the work to convert and bring up the sflug VM - which delayed its completion a bit more. references/excerpts: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze [that URL won't be accessible until the balug VM is back up again - after it's conversion from Xen to qemu-kvm). $ hostname; date -Iseconds; uptime sflug 2012-02-28T03:46:26-0800 03:46:26 up 33 min, 2 users, load average: 0.00, 0.00, 0.00 $ $ hostname; date -Iseconds; uptime; cat /etc/debian_version; uname -a vicki 2012-02-28T03:47:51-0800 03:47:51 up 4:46, 2 users, load average: 0.06, 0.02, 0.00 6.0.4 Linux vicki 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012 x86_64 GNU/Linux $ From jbpuig at sbcglobal.net Wed Feb 29 07:14:41 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 29 Feb 2012 07:14:41 -0800 (PST) Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge Message-ID: <1330528481.63840.YahooMailRC@web83807.mail.sp1.yahoo.com> The SF-LUG Linux Study Group hosts a general Linux Discussion meeting at Noisebridge on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. This week the topic is a first look at file permissions. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From nk.oorda at gmail.com Fri Mar 2 01:05:42 2012 From: nk.oorda at gmail.com (nk oorda) Date: Fri, 2 Mar 2012 14:35:42 +0530 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems Message-ID: Hi i need some suggestion for defining the partition size for my production systems. we are going to use CentOS 6.2 (64 bit) - Partition size - Mount points What i am able to get from the google search is: / Root File System (/bin , /sbin , /dev , /root /usr program and source code /var variable data /boot boot kernels /tmp temp file locations /work to do your work here "you can name it anything" Swap - */home* - Set option nosuid, and nodev with diskquota option - */usr* - Set option nodev - */tmp* - Set option nodev, nosuid, noexec option must be enabled - /var local,nodev,nosuid Most of the server will be running - Apache -Tomcat -SOLR and few of them would be running MySQL as data base. what is concern is that one of the developer accidentally deleted the /usr files with sudo access. if somehow i can protect the core system from the developers mistake that would be really good. Thanks in advance for help. --n -------------- next part -------------- An HTML attachment was scrubbed... URL: From jackofnotrades at gmail.com Fri Mar 2 07:43:45 2012 From: jackofnotrades at gmail.com (Jeff Bragg) Date: Fri, 2 Mar 2012 07:43:45 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: References: Message-ID: For machines that will have actual user data (not just systems and automation accounts), I like to use a separate /home partition; otherwise it can just be a directory under /. /var is where logs go, so there's a good argument for giving it its own partition (because if you don't rotate the logs regularly it can end up eating up all the available space, which is not serious if it's a separate partition, but is if it's just a directory under /). I don't have a strong opinion about /boot as a separate partition; in theory, it's probably easier with a separate partition to recover from boot issues, e.g. MBR corruption, but it's not something I've really had to fight with in practice. I leave /usr as a directory on the / partition. Unless you expect it to be very volatile (constantly installing new software via the package manager), I can't really think of a good reason to do otherwise. /opt is also popular, as a place to install software that isn't available through the package manager. If you expect to do that a lot, it may be worth having a separate partition for it. I can only offer the most general advice in terms of size of partitions, as it depends quite a bit on what you plan to do with the machine, and the size for each depends in part on overall arrangement. Personally, I like to make sure that / is at least 10 Gb, and possibly a good deal larger, especially if /home isn't a separate partition (and you expect to have actual users). If you have users, such as developers, using this machine, I recommend a separate /home partition, and probably making it the largest one (perhaps around half the overall disk size). /var is generally fine at only a few Gb (< 10). /tmp should probably be similar to /var in terms of size (and there are similar reasons for making it a separate partition, depending on use case). For /opt it depends on your use case; if you won't be installing outside of the package manager, and won't be installing custom software there, probably best to just leave it as a directory under /. In general, the more of this you leave as directories rather than partitions, the larger / should be to accommodate. In my view, there are two main reasons to create a partition for these locations: 1) to protect / from filling up (and the machine falling over) due to user files, unexpected log growth or unrotated logs, temporary data, etc, and 2) to protect the contents of the partition from OS problems (e.g. protecting user files from deletion in the event that you have to reinstall the OS, or otherwise need to reformat /). I hope that helps a bit. On Fri, Mar 2, 2012 at 1:05 AM, nk oorda wrote: > Hi > > i need some suggestion for defining the partition size for my production > systems. we are going to use CentOS 6.2 (64 bit) > > - Partition size > - Mount points > > What i am able to get from the google search is: > > / Root File System (/bin , /sbin , /dev , /root > /usr program and source > code > /var variable data > /boot boot kernels > /tmp temp file locations > /work to do your work here "you can name it anything" > Swap > > - */home* - Set option nosuid, and nodev with diskquota option > - */usr* - Set option nodev > - */tmp* - Set option nodev, nosuid, noexec option must be enabled > - /var local,nodev,nosuid > > > Most of the server will be running > - Apache > -Tomcat > -SOLR > > and few of them would be running MySQL as data base. > > > what is concern is that one of the developer accidentally deleted the /usr > files with sudo access. if somehow i can protect the core system from the > developers mistake that would be really good. > > Thanks in advance for help. > > --n > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at well.com Fri Mar 2 12:11:24 2012 From: jim at well.com (jim) Date: Fri, 02 Mar 2012 12:11:24 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: References: Message-ID: <1330719084.1704.379.camel@jim-LAPTOP> >From your description it seems there are three considerations: 1 training (or maybe hiring policies): it's possible for experienced and competent engineers to delete all of /usr/ but rare. My guess is the person who did so was not familiar with Unix-like systems. 2 sudo fine-tuning: despite widespread information about best or good or other practices, systems are often installed and configured the fastest way possible. In this case, perhaps all sudoers have root privileges. If so, consider setting up some sudoers to have permissions for one or more groups so that they don't have total destruction powers. 3 mounting: consider mounting most partitions in read-only mode. This makes updating and upgrading a bit more painful, but think of that as good: the extra hurdle may remind upgraders to be mindful of various considerations. I like choices 1 and 2 a lot. I don't see how the issue of partition sizing relates to the problem you described. As to sizing, seems to me the main consideration these days is copying (mainly backups). Another is that you have some requirement for different types of filesystems. Most system files are just as well stored on the partition that has the root filesystem. The exception might be /var/ if there's a lot of activity or the possibility of log file overflow. If the host allows only a few users shell access, it may or may not be smart to put /home/ on a separate partition (if your developers are using a version-control repo, maybe they have little or no data to store on their /home/ directories on this host). The /opt/ and /srv/ directory names are used for special (usually big) application software. Consider making a /data/ directory or some such. In the case that a top-level directory stores "variable" data, it's probably good (or "best") that it's on a separate partition. On Fri, 2012-03-02 at 14:35 +0530, nk oorda wrote: > Hi > > i need some suggestion for defining the partition size for my > production systems. we are going to use CentOS 6.2 (64 bit) > > - Partition size > - Mount points > > What i am able to get from the google search is: > > / Root File System (/bin , /sbin , /dev , /root > /usr program and source > code > /var variable data > /boot boot kernels > /tmp temp file locations > /work to do your work here "you can name it anything" > Swap > > * /home - Set option nosuid, and nodev with diskquota option > * /usr - Set option nodev > * /tmp - Set option nodev, nosuid, noexec option must be enabled > * /var local,nodev,nosuid > > > Most of the server will be running > - Apache > -Tomcat > -SOLR > > and few of them would be running MySQL as data base. > > > what is concern is that one of the developer accidentally deleted > the /usr files with sudo access. if somehow i can protect the core > system from the developers mistake that would be really good. > > Thanks in advance for help. > > > --n > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From bliss-sf4ever at dslextreme.com Fri Mar 2 12:45:18 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Fri, 02 Mar 2012 12:45:18 -0800 Subject: [sf-lug] My problem with Thunderbird Message-ID: <4F51315E.9040603@dslextreme.com> I cannot click on an embedded URL and have a window open on Firefox. I have been waiting for some real advice on Get Satisfaction the Mozilla site for several days. Any ideas? bliss From jackofnotrades at gmail.com Fri Mar 2 12:54:25 2012 From: jackofnotrades at gmail.com (Jeff Bragg) Date: Fri, 2 Mar 2012 12:54:25 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: <1330719084.1704.379.camel@jim-LAPTOP> References: <1330719084.1704.379.camel@jim-LAPTOP> Message-ID: As Jim mentions, sudo fine-tuning is important, if you have a lot of sudo-enabled users. Frankly, I advocate starting by removing privileges, and then adding them back in explicitly as users indicate a need for them (that is, when the devs scream at you because they were prevented from doing X). This approach will be initially painful, to be sure, but it ensures that you are only elevating privileges that actually need to be elevated. Furthermore, a dev who deletes the contents of /usr (accidentally or otherwise) without one hell of a justification should, in my view, be put on probation, in terms of OS privileges, as that sort of action can screw things up for an entire team (and then you have a whole bunch of devs, etc screaming at you). On their own machine, give devs privileges as broad as they want, but on shared machines doing so is inviting disaster, IMO. On Fri, Mar 2, 2012 at 12:11 PM, jim wrote: > > > >From your description it seems there are three considerations: > 1 training (or maybe hiring policies): it's possible > for experienced and competent engineers to delete > all of /usr/ but rare. My guess is the person who > did so was not familiar with Unix-like systems. > 2 sudo fine-tuning: despite widespread information > about best or good or other practices, systems are > often installed and configured the fastest way > possible. In this case, perhaps all sudoers have > root privileges. If so, consider setting up some > sudoers to have permissions for one or more groups > so that they don't have total destruction powers. > 3 mounting: consider mounting most partitions in > read-only mode. This makes updating and upgrading > a bit more painful, but think of that as good: > the extra hurdle may remind upgraders to be > mindful of various considerations. > I like choices 1 and 2 a lot. > > I don't see how the issue of partition sizing > relates to the problem you described. As to sizing, > seems to me the main consideration these days is > copying (mainly backups). Another is that you have > some requirement for different types of filesystems. > Most system files are just as well stored on > the partition that has the root filesystem. The > exception might be /var/ if there's a lot of > activity or the possibility of log file overflow. > If the host allows only a few users shell access, > it may or may not be smart to put /home/ on a > separate partition (if your developers are using > a version-control repo, maybe they have little or > no data to store on their /home/ directories on > this host). > The /opt/ and /srv/ directory names are used > for special (usually big) application software. > Consider making a /data/ directory or some such. > In the case that a top-level directory stores > "variable" data, it's probably good (or "best") > that it's on a separate partition. > > > On Fri, 2012-03-02 at 14:35 +0530, nk oorda wrote: > > Hi > > > > i need some suggestion for defining the partition size for my > > production systems. we are going to use CentOS 6.2 (64 bit) > > > > - Partition size > > - Mount points > > > > What i am able to get from the google search is: > > > > / Root File System (/bin , /sbin , /dev , /root > > /usr program and source > > code > > /var variable data > > /boot boot kernels > > /tmp temp file locations > > /work to do your work here "you can name it anything" > > Swap > > > > * /home - Set option nosuid, and nodev with diskquota option > > * /usr - Set option nodev > > * /tmp - Set option nodev, nosuid, noexec option must be enabled > > * /var local,nodev,nosuid > > > > > > Most of the server will be running > > - Apache > > -Tomcat > > -SOLR > > > > and few of them would be running MySQL as data base. > > > > > > what is concern is that one of the developer accidentally deleted > > the /usr files with sudo access. if somehow i can protect the core > > system from the developers mistake that would be really good. > > > > Thanks in advance for help. > > > > > > --n > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at systemateka.com Fri Mar 2 13:11:33 2012 From: jim at systemateka.com (jim) Date: Fri, 02 Mar 2012 13:11:33 -0800 Subject: [sf-lug] My problem with Thunderbird In-Reply-To: <4F51315E.9040603@dslextreme.com> References: <4F51315E.9040603@dslextreme.com> Message-ID: <1330722693.1704.416.camel@jim-LAPTOP> What's the context? It might be that you're trying to click the URL in a reply window. Verify that you're clicking the URL in the window showing the email sent to you and not in the reply window. (best i can do, good luck.) On Fri, 2012-03-02 at 12:45 -0800, Bobbie Sellers wrote: > I cannot click on an embedded URL and have > a window open on Firefox. > > I have been waiting for some real advice on Get Satisfaction > the Mozilla site for several days. > > Any ideas? > > bliss > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From jim at systemateka.com Fri Mar 2 13:13:22 2012 From: jim at systemateka.com (jim) Date: Fri, 02 Mar 2012 13:13:22 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: References: <1330719084.1704.379.camel@jim-LAPTOP> Message-ID: <1330722802.1704.418.camel@jim-LAPTOP> oh yeah: and also, make sure you can rebuild your OS system files quickly on demand. Maybe have the OS duplicated on a partition that's normally not mounted. On Fri, 2012-03-02 at 12:54 -0800, Jeff Bragg wrote: > As Jim mentions, sudo fine-tuning is important, if you have a lot of > sudo-enabled users. Frankly, I advocate starting by removing > privileges, and then adding them back in explicitly as users indicate > a need for them (that is, when the devs scream at you because they > were prevented from doing X). This approach will be initially > painful, to be sure, but it ensures that you are only elevating > privileges that actually need to be elevated. Furthermore, a dev who > deletes the contents of /usr (accidentally or otherwise) without one > hell of a justification should, in my view, be put on probation, in > terms of OS privileges, as that sort of action can screw things up for > an entire team (and then you have a whole bunch of devs, etc screaming > at you). On their own machine, give devs privileges as broad as they > want, but on shared machines doing so is inviting disaster, IMO. > > On Fri, Mar 2, 2012 at 12:11 PM, jim wrote: > > > >From your description it seems there are three > considerations: > 1 training (or maybe hiring policies): it's possible > for experienced and competent engineers to delete > all of /usr/ but rare. My guess is the person who > did so was not familiar with Unix-like systems. > 2 sudo fine-tuning: despite widespread information > about best or good or other practices, systems are > often installed and configured the fastest way > possible. In this case, perhaps all sudoers have > root privileges. If so, consider setting up some > sudoers to have permissions for one or more groups > so that they don't have total destruction powers. > 3 mounting: consider mounting most partitions in > read-only mode. This makes updating and upgrading > a bit more painful, but think of that as good: > the extra hurdle may remind upgraders to be > mindful of various considerations. > I like choices 1 and 2 a lot. > > I don't see how the issue of partition sizing > relates to the problem you described. As to sizing, > seems to me the main consideration these days is > copying (mainly backups). Another is that you have > some requirement for different types of filesystems. > Most system files are just as well stored on > the partition that has the root filesystem. The > exception might be /var/ if there's a lot of > activity or the possibility of log file overflow. > If the host allows only a few users shell access, > it may or may not be smart to put /home/ on a > separate partition (if your developers are using > a version-control repo, maybe they have little or > no data to store on their /home/ directories on > this host). > The /opt/ and /srv/ directory names are used > for special (usually big) application software. > Consider making a /data/ directory or some such. > In the case that a top-level directory stores > "variable" data, it's probably good (or "best") > that it's on a separate partition. > > > On Fri, 2012-03-02 at 14:35 +0530, nk oorda wrote: > > Hi > > > > i need some suggestion for defining the partition size for > my > > production systems. we are going to use CentOS 6.2 (64 bit) > > > > - Partition size > > - Mount points > > > > What i am able to get from the google search is: > > > > / Root File System (/bin , /sbin , /dev , /root > > /usr program and source > > code > > /var variable data > > /boot boot kernels > > /tmp temp file locations > > /work to do your work here "you can name it anything" > > Swap > > > > > * /home - Set option nosuid, and nodev with diskquota > option > > * /usr - Set option nodev > > * /tmp - Set option nodev, nosuid, noexec option must > be enabled > > * /var local,nodev,nosuid > > > > > > Most of the server will be running > > - Apache > > -Tomcat > > -SOLR > > > > and few of them would be running MySQL as data base. > > > > > > what is concern is that one of the developer accidentally > deleted > > the /usr files with sudo access. if somehow i can protect > the core > > system from the developers mistake that would be really > good. > > > > Thanks in advance for help. > > > > > > --n > > > _______________________________________________ > > sf-lug mailing list > > sf-lug at linuxmafia.com > > http://linuxmafia.com/mailman/listinfo/sf-lug > > Information about SF-LUG is at http://www.sf-lug.org/ > > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From bliss-sf4ever at dslextreme.com Fri Mar 2 13:27:06 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Fri, 02 Mar 2012 13:27:06 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: References: Message-ID: <4F513B2A.2070008@dslextreme.com> On 03/02/2012 01:05 AM, nk oorda wrote: > > Hi > > i need some suggestion for defining the partition size for my > production systems. we are going to use CentOS 6.2 (64 bit) > > - Partition size > - Mount points > > What i am able to get from the google search is: > > / Root File System (/bin , /sbin , /dev , /root > /usr program and source code > /var variable data > /boot boot kernels > /tmp temp file locations > /work to do your work here "you can name it anything" > Swap > > * */home*- Set option nosuid, and nodev with diskquota option > * */usr*- Set option nodev > * */tmp*- Set option nodev, nosuid, noexec option must be enabled > * /var local,nodev,nosuid > > > Most of the server will be running > - Apache > -Tomcat > -SOLR > > and few of them would be running MySQL as data base. > > > what is concern is that one of the developer accidentally deleted the > /usr files with sudo access. if somehow i can protect the core system > from the developers mistake that would be really good. > > Thanks in advance for help. > > > --n > > I though there were files about this on the SF-LUG site? I have saved a couple from a competent party who posts on Usenet in Linux newsgroup and will be happy to forward to you in private e-mail. Bobbie Sellers -------------- next part -------------- An HTML attachment was scrubbed... URL: From rick at linuxmafia.com Fri Mar 2 16:00:25 2012 From: rick at linuxmafia.com (Rick Moen) Date: Fri, 2 Mar 2012 16:00:25 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: References: Message-ID: <20120303000025.GC15452@linuxmafia.com> Quoting nk oorda (nk.oorda at gmail.com): > i need some suggestion for defining the partition size for my production > systems. Your partitioning is logically dictated by what you're trying to achieve, including what threat modes you're attempting to protect against. Some of the concerns that might drive partitioning design for a server are laid out here: http://linuxmafia.com/pipermail/conspire/2012-February/006925.html http://linuxmafia.com/pipermail/conspire/2012-February/006970.html http://linuxmafia.com/pipermail/conspire/2012-February/006921.html Themes mentioned: 1. Partitions carved out in order to use ext2 for high performance. 2. Partitions carved out to enable use of custom mount options, e.g., noatime, nodev, nosuid 3. Partitions carved out to cluster most-accessed parts of the file tree around the swap partition for minimum average seek distince/time within a spindle (where spinning media is used). 4. Partitions carved out to keep them normally read-only as a protection against sysadmin error. One might add: 5. Partitions made be NOT part of the root filesystem to better protect the root FS from getting overfilled or damaged. 6. Partitions kept separate because they're network-shared e.g., via NFS Poster rgmoore on LWN posted (https://lwn.net/Articles/484332/) The idea is that you should be able to have a separate partition for each different kind of data. It should be possible to keep read-only data (or data that is only supposed to be written by a sysadmin) on a separate partition from data that's frequently written, data that's specific to a particular machine separate from data that can be shared across multiple machines, and data that is volatile across a reboot separate from data that needs to be preserved across reboots. So the idea is that standard partitions are supposed to be: / Machine specific, read-only /var Machine specific, read-write, stable across reboots /tmp Machine specific, read-write, volatile across reboots /usr Shared, read-only /home Shared, read-write Exactly so. > What i am able to get from the google search is: What you should be concentrating on finding is _why_ a particular division was used, i.e., towards what purpose or benefit. My URL #2 (above) includes a brief schema of filesystems on the server that runs this mailing list -- and some of the reasons. If anyone's interested, I'd be glad to elaborate more about that. From jim at systemateka.com Fri Mar 2 20:31:47 2012 From: jim at systemateka.com (jim) Date: Fri, 02 Mar 2012 20:31:47 -0800 Subject: [sf-lug] What are the best practices for Linux partitioning & Mount points for Production systems In-Reply-To: <20120303000025.GC15452@linuxmafia.com> References: <20120303000025.GC15452@linuxmafia.com> Message-ID: <1330749107.1704.502.camel@jim-LAPTOP> (clipped from below) "My URL #2 (above) includes a brief schema of filesystems on the server that runs this mailing list -- and some of the reasons. If anyone's interested, I'd be glad to elaborate more about that." JS: I'm interested. On Fri, 2012-03-02 at 16:00 -0800, Rick Moen wrote: > Quoting nk oorda (nk.oorda at gmail.com): > > > i need some suggestion for defining the partition size for my production > > systems. > > Your partitioning is logically dictated by what you're trying to > achieve, including what threat modes you're attempting to protect > against. > > Some of the concerns that might drive partitioning design for a server > are laid out here: > http://linuxmafia.com/pipermail/conspire/2012-February/006925.html > http://linuxmafia.com/pipermail/conspire/2012-February/006970.html > http://linuxmafia.com/pipermail/conspire/2012-February/006921.html > > Themes mentioned: > 1. Partitions carved out in order to use ext2 for high performance. > 2. Partitions carved out to enable use of custom mount options, > e.g., noatime, nodev, nosuid > 3. Partitions carved out to cluster most-accessed parts of the file > tree around the swap partition for minimum average seek > distince/time within a spindle (where spinning media is used). > 4. Partitions carved out to keep them normally read-only as a > protection against sysadmin error. > > One might add: > 5. Partitions made be NOT part of the root filesystem to better protect > the root FS from getting overfilled or damaged. > 6. Partitions kept separate because they're network-shared e.g., via NFS > > Poster rgmoore on LWN posted (https://lwn.net/Articles/484332/) > > The idea is that you should be able to have a separate partition for > each different kind of data. It should be possible to keep read-only > data (or data that is only supposed to be written by a sysadmin) on a > separate partition from data that's frequently written, data that's > specific to a particular machine separate from data that can be shared > across multiple machines, and data that is volatile across a reboot > separate from data that needs to be preserved across reboots. So the > idea is that standard partitions are supposed to be: > > / Machine specific, read-only > /var Machine specific, read-write, stable across reboots > /tmp Machine specific, read-write, volatile across reboots > /usr Shared, read-only > /home Shared, read-write > > Exactly so. > > > What i am able to get from the google search is: > > What you should be concentrating on finding is _why_ a particular > division was used, i.e., towards what purpose or benefit. > > My URL #2 (above) includes a brief schema of filesystems on the > server that runs this mailing list -- and some of the reasons. If > anyone's interested, I'd be glad to elaborate more about that. > > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From bliss-sf4ever at dslextreme.com Sat Mar 3 09:06:25 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Sat, 03 Mar 2012 09:06:25 -0800 Subject: [sf-lug] My problem with Thunderbird In-Reply-To: <1330722693.1704.416.camel@jim-LAPTOP> References: <4F51315E.9040603@dslextreme.com> <1330722693.1704.416.camel@jim-LAPTOP> Message-ID: <4F524F91.8080203@dslextreme.com> On 03/02/2012 01:11 PM, jim wrote: > > What's the context? > It might be that you're trying to click the URL > in a reply window. Verify that you're clicking the > URL in the window showing the email sent to you and > not in the reply window. > (best i can do, good luck.) > > > > On Fri, 2012-03-02 at 12:45 -0800, Bobbie Sellers wrote: >> I cannot click on an embedded URL and have >> a window open on Firefox. >> >> I have been waiting for some real advice on Get Satisfaction >> the Mozilla site for several days. >> >> Any ideas? >> >> bliss After I tried futilely to edit the .js file of user preferences to no effect I was offered the chance to delete files .js files and Tb rewrote them on exit this AM, the clicking on the URLs works again. Thank goodness Bobbie Sellers From Michael.Paoli at cal.berkeley.edu Wed Mar 7 03:01:19 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Wed, 07 Mar 2012 03:01:19 -0800 Subject: [sf-lug] SF-LUG.com System OS upgrade (likely 2012-03-14 (or 2012-03-21)) Message-ID: <20120307030119.98441ldgwkutfllw@webmail.rawbw.com> Watch this space for updates ;-) (from me and/or Jim) ... but, ... fairly probable that 6-8pm W 2012-03-14 (or alternatively 2012-03-21), at Noisebridge, I/we will be (remotely, from there), performing OS upgrade of the host that provides [www.]sf-lug.com (at least http, and DNS master). From jbpuig at sbcglobal.net Wed Mar 7 10:53:44 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 7 Mar 2012 10:53:44 -0800 (PST) Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge Message-ID: <1331146424.88815.YahooMailRC@web83809.mail.sp1.yahoo.com> The SF-LUG Linux Study Group hosts a general Linux Discussion meeting at Noisebridge on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From bliss-sf4ever at dslextreme.com Wed Mar 7 19:04:15 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Wed, 07 Mar 2012 19:04:15 -0800 Subject: [sf-lug] Research in programing languages Message-ID: <4F5821AF.4080608@dslextreme.com> interesting take on research in programming languages From bliss-sf4ever at dslextreme.com Wed Mar 7 19:08:27 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Wed, 07 Mar 2012 19:08:27 -0800 Subject: [sf-lug] Science news Message-ID: <4F5822AB.5090307@dslextreme.com> On TV this evening: You can search for the articles on line... But at the Cern facility they believe that they have found evidence for the Higgs Boson. These inquisitive people are sure they will discover the particle itself within the next few months. And the Sun is releasing large quantities of Charged particles which will hit about 4 AM PT. Look for very colorful auroral displays. Disconnect sensitive equipment as they expect power line surges and similar problems could occur. I will shut down my machine tonight and take it off all connectors to lower my chances of Solar flare damage. I wonder if that will help? bliss From grantbow at ubuntu.com Wed Mar 7 21:35:57 2012 From: grantbow at ubuntu.com (Grant Bowman) Date: Wed, 7 Mar 2012 21:35:57 -0800 Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge In-Reply-To: <1331146424.88815.YahooMailRC@web83809.mail.sp1.yahoo.com> References: <1331146424.88815.YahooMailRC@web83809.mail.sp1.yahoo.com> Message-ID: I enjoyed the meeting tonight and appreciate all the great ideas people shared, thanks. Grant Bowman dvlug.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From nbs at sonic.net Thu Mar 8 11:33:07 2012 From: nbs at sonic.net (nbs) Date: Thu, 8 Mar 2012 11:33:07 -0800 Subject: [sf-lug] Reminder: Linux Users' Group of Davis, March 19: "Attaining Critical Mass with Java EE" Message-ID: <201203081933.q28JX7fZ030819@bolt.sonic.net> The Linux Users' Group of Davis (LUGOD) will be holding the following meeting: Monday March 19, 2012 7:00pm - 9:00pm Presentation: "Attaining Critical Mass with Java EE" Brian Lavender Maybe you tried Java. You found it slow or you found it complex and encumbered with XML. The good news is that Java EE (formally known as J2EE) has been evolving. The good news is that configuration by convention and annotations has simplified many of those complexities. Perhaps now is the time to take a new look. We will look at using both doing web pages using JSF, Web Beans with Context Dependency Injection, and JPA. We will explore using both Netbeans and Eclipse for tooling. This meeting will be held at: Yolo County Public Library, Mary L. Stephens Davis Branch (Davis Public Library) 315 East 14th Street Davis, California 95616 For more details on this meeting, visit: http://www.lugod.org/meeting/upcoming/ For maps, directions, public transportation schedules, etc., visit: http://www.lugod.org/meeting/library/ ------------ About LUGOD: ------------ The Linux Users' Group of Davis is a 501(c)7 non-profit organization dedicated to the Linux computer operating system and other Open Source and Free Software. Since 1999, LUGOD has held regular meetings with guest speakers in Davis, California, as well as other events in Davis and the greater Sacramento region. Events are always free and open to the public. Please visit our website for more details: http://www.lugod.org/ -- Bill Kendrick pr at lugod.org Public Relations Officer Linux Users' Group of Davis http://www.lugod.org/ (Your address: sf-lug at linuxmafia.com ) From bliss-sf4ever at dslextreme.com Sun Mar 11 11:36:08 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Sun, 11 Mar 2012 11:36:08 -0700 Subject: [sf-lug] Don't like KDE 4.x.x? Message-ID: <4F5CF098.2090801@dslextreme.com> Hi LUGers et al, Well a lot of users have been unhappy with KDE 4.x.x so Pearson Computing has put together several version of Ubuntu (or should that be Tubuntu?) for various processors with a bootable live CD to test the system. I just got thru with a very simple test of this Ubuntu-10.10-trinity-amd64.iso which took about 90 minutes for me to download. They also have enterprise versions in DVD.isos. This takes quite a while to boot up from CD but it works OK and includes some of my favorite tools on the CD. It does lack Firefox and Thunderbird. While it said it did not recognise the video card or monitor the latest system recognizes not only the correct resolution and refresh rate but as well allows rotation, mirroring and use on multiple monitors. This does not look identical to 3.9.10 but it has tools that resemble that version of KDE very closely and permit similar changes. They have instructions as well for installation to installed Ubuntu systems. Bobbie Sellers From Michael.Paoli at cal.berkeley.edu Sun Mar 11 13:34:11 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sun, 11 Mar 2012 13:34:11 -0700 Subject: [sf-lug] First Squeeze-based Debian Edu version released Message-ID: <20120311133411.17935lleo8ynug4k@webmail.rawbw.com> For those that may be interested, this is first release of Debian Edu based upon Debian "Squeeze" - Debian's current "stable" "release" (distribution). details here: http://www.debian.org/News/2012/20120311 From bliss-sf4ever at dslextreme.com Mon Mar 12 17:55:31 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 12 Mar 2012 17:55:31 -0700 Subject: [sf-lug] SF-LUG meets Monday, March 19 Message-ID: <4F5E9B03.3090800@dslextreme.com> SF-LUG meets every third Monday from 6 P.M. to 8 P.M. at the Cafe Enchante, 26th and Geary Boulevard so a week from today we are getting together. These meetings are usually lightly attended with a high for the year so far of 6 members. If you have a problem come along and maybe we can help but if not we can usually find someone who can. Last meeting was Eric (not the regular attendee but a new guy who had met Jim Stockford at the previous meeting, Ken Schaeffer and his wife and myself. Ken is really good at dealing with problems at the CLI level and helped myself and Eric with problems we were having. Seems like my 3 year old Compaq Presario notebook is getting flaky. The keyboard surround has lost a hold-down and is warping radically. I have ordered a replacement which so far is the most expensive part I have gotten for this notebook. I will have the latest Linux Pro magazine and the DVD of the month is CentOS 6.2. I have the live disks for the Ubuntu with Trinity desktop and Netrunner 4.1 with Kernel of 3+ and KDE 7.1 if that sort of thing interests anyone. Hope to see you at the meeting. Bobbie Sellers From Michael.Paoli at cal.berkeley.edu Mon Mar 12 18:54:21 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 12 Mar 2012 18:54:21 -0700 Subject: [sf-lug] SF-LUG.com System OS upgrade 2012-03-14 6-8p @ Noisebridge (& Bay Area Debian (BAD) meeting & option for dinner after Noisebridge) Message-ID: <20120312185421.184623tlkvp05dr4@webmail.rawbw.com> details here: http://bad.debian.net/list/2012-March/003485.html So ... [www.]sf-lug.com services may be intermittently (un)available while the upgrade is in progress. references / see also: http://linuxmafia.com/pipermail/sf-lug/2012q1/009233.html From einfeldt at gmail.com Tue Mar 13 17:31:15 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Tue, 13 Mar 2012 17:31:15 -0700 Subject: [sf-lug] Triagefest and pizza this Saturday! Message-ID: Hi, This Saturday from 10:30 to 3:00, there will be a triagefest at the Creative Arts Charter School at 1601 Turk Street at the corner of Pierce Street in San Francisco. This is the school that had that huge fire on 12/22/11. More about that fire here: http://blog.partimus.org/?p=159 The purpose of this triage fest is to separate good equipment from bad equipment. Volunteers with a pick-up truck for moving equipment 3 blocks would be particularly appreciated. Pizza will be served at 12:30 p.m. Please bring with you everything that you would need to test a computer and its peripheral equipment, and to take a computer apart and put it back together. It would also be good to bring Ubuntu 10.04 on a flash drive, since we will be installing that distro on some machines. This public charter school relies on our Linux computers heavily for the work that their students do, so they will definitely appreciate the work! Thanks in advance to all volunteers! -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Tue Mar 13 17:35:57 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Tue, 13 Mar 2012 17:35:57 -0700 Subject: [sf-lug] Triagefest and pizza this Saturday! In-Reply-To: References: Message-ID: To be more clear, the triagefest will be this Saturday, March 17. The rest of the details are below... On Tue, Mar 13, 2012 at 5:31 PM, Christian Einfeldt wrote: > Hi, > > This Saturday from 10:30 to 3:00, there will be a triagefest at the > Creative Arts Charter School at 1601 Turk Street at the corner of Pierce > Street in San Francisco. This is the school that had that huge fire on > 12/22/11. More about that fire here: > > http://blog.partimus.org/?p=159 > > The purpose of this triage fest is to separate good equipment from bad > equipment. Volunteers with a pick-up truck for moving equipment 3 blocks > would be particularly appreciated. > > Pizza will be served at 12:30 p.m. > > Please bring with you everything that you would need to test a computer > and its peripheral equipment, and to take a computer apart and put it back > together. It would also be good to bring Ubuntu 10.04 on a flash drive, > since we will be installing that distro on some machines. > > This public charter school relies on our Linux computers heavily for the > work that their students do, so they will definitely appreciate the work! > Thanks in advance to all volunteers! > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbpuig at sbcglobal.net Wed Mar 14 11:25:59 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 14 Mar 2012 11:25:59 -0700 (PDT) Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge Message-ID: <1331749559.79259.YahooMailRC@web83813.mail.sp1.yahoo.com> The SF-LUG Linux Study Group hosts a general Linux Discussion meeting at Noisebridge on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From Michael.Paoli at cal.berkeley.edu Thu Mar 15 06:32:16 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 15 Mar 2012 06:32:16 -0700 Subject: [sf-lug] "done": SF-LUG.com System OS upgrade 2012-03-14 6-8p @ Noisebridge (& Bay Area Debian (BAD) meeting & option for dinner after Noisebridge) In-Reply-To: <20120312185421.184623tlkvp05dr4@webmail.rawbw.com> References: <20120312185421.184623tlkvp05dr4@webmail.rawbw.com> Message-ID: <20120315063216.12146lb76xsj90so@webmail.rawbw.com> The main sequence upgrade portions of this system upgrade were completed yesterday by 8pm (by about 7:48 P.M.). So, for most intents and purposes (at least from, e.g. "services" perspective), this upgrade is done and concluded. There do remain some follow-up tasks and clean-up, etc., but nothing that should be particularly disruptive to system services (e.g. nothing beyond some occasional service reloads/restarts or some short reboots of system - generally less than 60 second outage, and should in all cases be shorter than 4 minutes). Such rather to quite short outages generally won't be "announced" (e.g. here), but for those interested, relevant bits may be found here: http://www.sf-lug.com/log.txt Also, for those interested in more details on (and updates about) the upgrade, have a look here: http://www.wiki.balug.org/wiki/doku.php?id=system:vicki_debian_lenny_to_squeeze#sflug_vm_upgrade_to_debian_gnu_linux_604 At least presently, I'm still generally updating that - at least through conclusion of the last clean-up and follow-through actions on the full wrap-up and conclusion of the upgrade and any rather/quite closely related bits. > From: "Michael Paoli" > Subject: SF-LUG.com System OS upgrade 2012-03-14 6-8p @ Noisebridge > (& Bay Area Debian (BAD) meeting & option for dinner after > Noisebridge) > Date: Mon, 12 Mar 2012 18:54:21 -0700 > details here: > http://bad.debian.net/list/2012-March/003485.html > > So ... [www.]sf-lug.com services may be intermittently (un)available > while the upgrade is in progress. > > references / see also: > http://linuxmafia.com/pipermail/sf-lug/2012q1/009233.html From Michael.Paoli at cal.berkeley.edu Thu Mar 15 20:15:15 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Thu, 15 Mar 2012 20:15:15 -0700 Subject: [sf-lug] BALUG: Tu 2012-03-20: Vision Solutions: Double-Take Availability for Linux; & other BALUG news Message-ID: <20120315201515.10211m7ycfmdj0v4@webmail.rawbw.com> BALUG: Tu 2012-03-20: Vision Solutions: Double-Take Availability for Linux; & other BALUG news ------------------------------ items, details further below: 2012-03-20 Tu: Double-Take Availability for Linux, by Vision Solutions 2012-04-17 Ubuntu 12.04 LTS Precise Pangolin, by Grant Bowman & Elizabeth Krumbach 2012-05-15 Salt. Configuration Management and Remote Execution at Scale, by Corey Quinn 2012-02-21 OpenPhoto Project - Jaisen Mathai (slides,etc.) CDs, and other "door prizes", etc. volunteering to help BALUG ------------------------------ For our 2012-03-20 meeting BALUG is proud to present: Vision Solutions[1] technical presentation on: Double-Take Availability for Linux[2] presented by: Shaun Sellers, Linux Product Manager and also on-hand will be: Greg Ross, Solutions Architect for Double-Take software, Western region Brion Donlon, Regional Sales Manager Double-Take Availability for Linux is a continuous, byte-level replication and failover software product. As it can monitor changes to any data files, it can protect any application - DB or others. The replication is from source to target server. Each server is licensed and has the software installed. Configuration of what data to replicate and what failover parameters are to be used is accomplished by a universal console that can run on any Windows platform - PC, laptop, server, etc. The console doesn't need to run on the servers being protected. Source and target servers can be in the same room or across any geographic distance - over any TCP/IP network. As Availability is considered a high availability product, RPOs are typically in the near-zero range because the data changes are captured and transmitted continuously. RTO (or failover) is typically in the seconds to minutes range. Vision Solutions currently supports most releases of RHEL, Oracle Linux, CentOS, SUSE with the Ext and XFS file systems. These distributions are supported on physical and virtual environments. Here is a short data sheet on the product[3], and website has several white papers[4] also. 1. http://www.visionsolutions.com/ 2. http://www.visionsolutions.com/Products/DT-Avail-Lin.aspx 3. http://pdf.visionsolutions.com/pdfs/us-double-take-availability-for-linux.pdf4. http://www.visionsolutions.com/Popular-Resources/Whitepapers.aspx So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, March 20th, 2012 2012-03-20 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue). ------------------------------ For our 2012-04-17 meeting BALUG is proud to announce: Ubuntu[1] 12.04[2] LTS[3] Precise Pangolin[2] presented by: Grant Bowman[4] & Elizabeth Krumbach[5] Ubuntu's newest Long Term Support (LTS) release, Ubuntu 12.04 LTS Precise Pangolin, is scheduled to be released 2012-04-26. At this meeting, we'll have co-presented from two wonderful local Ubuntu experts, information on Ubuntu, and what to find and expect in this latest Ubuntu LTS release. Topics covered will include major improvements to the Unity[6] desktop environment and new features you can expect related to the Ubuntu Server[7] and the new Ubuntu Cloud[8] images. Grant Bowman has been a consultant and Internet professional for over twenty years including a former Director of Silicon Valley Public Access Link (SV-PAL)[9] ISP serving Santa Clara County and a present Director of Partimus[10] serving San Francisco and Alameda County middle schools with recycled computers, open source software, training and support. He is an OLPC Developer, Ubuntu Member[11], Fedora[12] Ambassador, Debian[13] Developer and former employee of SUSE[14]. Active Habits[15] is a forthcoming Android app. He is also active with Berkeley Linux Users Group[16], Berkeley Unix User Group (BUUG)[17], Noisebridge[18], San Francisco Linux Users' Group (SF-LUG)[19] and also Diablo Valley Linux Users Group (DVLUG)[20] (every Friday in Walnut Creek). Elizabeth Krumbach works as a Debian[13] Systems Administrator and currently holds a position on the Ubuntu Community Council[21]. 1. http://www.ubuntu.com/ 2. https://wiki.ubuntu.com/PrecisePangolin 3. https://wiki.ubuntu.com/LTS 4. http://www.grantbow.com/ 5. http://princessleia.com/ 6. http://en.wikipedia.org/wiki/Unity_(user_interface) 7. http://www.ubuntu.com/business/server/overview 8. http://www.ubuntu.com/cloud 9. http://www.svpal.org/ 10. http://partimus.org/ 11. https://wiki.ubuntu.com/Membership 12. http://fedoraproject.org/ 13. http://www.debian.org/ 14. http://www.suse.com/ 15. http://www.activehabits.com/ 16. http://www.berkeleylug.com/ 17. http://www.buug.org/ 18. http://www.noisebridge.net/ 19. http://www.sf-lug.com/ 20. http://www.dvlug.org/ 21. https://wiki.ubuntu.com/CommunityCouncil ------------------------------ For our 2012-05-15 meeting BALUG is proud to announce: Corey Quinn: Salt[1]. Configuration Management and Remote Execution at Scale Corey Quinn has been finding new and better ways to be lazy via configuration management since discovering that "ssh in a for loop" didn't scale. He's a volunteer for the freenode[2] IRC[3] network, and splits his time between Los Angeles and San Francisco, where he's the director of systems operations at Expensify.com[4], helping make expense reports not suck. 1. http://saltstack.org/ 2. http://freenode.net/ 3. http://en.wikipedia.org/wiki/Internet_Relay_Chat 4. https://www.expensify.com/ ------------------------------ 2012-02-21 OpenPhoto Project - Jaisen Mathai Missed last month's meeting, or want to review the "slides"? have a peek here: http://lists.balug.org/pipermail/balug-talk-balug.org/2012-February/004794.html ------------------------------ CDs, and other "door prizes", etc. Goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ volunteering to help BALUG Want to volunteer to help out BALUG? (quite a variety of opportunities) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From Michael.Paoli at cal.berkeley.edu Mon Mar 19 16:41:04 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Mon, 19 Mar 2012 16:41:04 -0700 Subject: [sf-lug] BALUG: REMINDER TOMORROW Tu 2012-03-20: Vision Solutions: Double-Take Availability for Linux; & other BALUG news Message-ID: <20120319164104.19301btqp3ndqxa8@webmail.rawbw.com> BALUG: REMINDER TOMORROW Tu 2012-03-20: Vision Solutions: Double-Take Availability for Linux; & other BALUG news ------------------------------ items, details further below: 2012-03-20 Tu: Double-Take Availability for Linux, by Vision Solutions 2012-04-17 Ubuntu 12.04 LTS Precise Pangolin, by Grant Bowman & Elizabeth Krumbach 2012-05-15 Salt. Configuration Management and Remote Execution at Scale, by Corey Quinn 2012-02-21 OpenPhoto Project - Jaisen Mathai (slides,etc.) CDs, and other "door prizes", etc. volunteering to help BALUG ------------------------------ For our 2012-03-20 meeting BALUG is proud to present: Vision Solutions[1] technical presentation on: Double-Take Availability for Linux[2] presented by: Shaun Sellers, Linux Product Manager and also on-hand will be: Greg Ross, Solutions Architect for Double-Take software, Western region Brion Donlon, Regional Sales Manager Double-Take Availability for Linux is a continuous, byte-level replication and failover software product. As it can monitor changes to any data files, it can protect any application - DB or others. The replication is from source to target server. Each server is licensed and has the software installed. Configuration of what data to replicate and what failover parameters are to be used is accomplished by a universal console that can run on any Windows platform - PC, laptop, server, etc. The console doesn't need to run on the servers being protected. Source and target servers can be in the same room or across any geographic distance - over any TCP/IP network. As Availability is considered a high availability product, RPOs are typically in the near-zero range because the data changes are captured and transmitted continuously. RTO (or failover) is typically in the seconds to minutes range. Vision Solutions currently supports most releases of RHEL, Oracle Linux, CentOS, SUSE with the Ext and XFS file systems. These distributions are supported on physical and virtual environments. Here is a short data sheet on the product[3], and website has several white papers[4] also. 1. http://www.visionsolutions.com/ 2. http://www.visionsolutions.com/Products/DT-Avail-Lin.aspx 3. http://pdf.visionsolutions.com/pdfs/us-double-take-availability-for-linux.pdf4. http://www.visionsolutions.com/Popular-Resources/Whitepapers.aspx So, if you'd like to join us please RSVP to: rsvp at balug.org **Why RSVP??** Well, don't worry we won't turn you away, but the RSVPs really help BALUG and the Four Seas Restaurant plan the meal and meeting, and with sufficient attendance, they also help ensure that we'll be able to eat upstairs in the private banquet room. Meeting Details... 6:30pm Tuesday, March 20th, 2012 2012-03-20 Four Seas Restaurant http://www.fourseasr.com/ 731 Grant Ave. San Francisco, CA 94108 Easy PARKING: Portsmouth Square Garage at 733 Kearny: http://www.sfpsg.com/ Cost: The meetings are always free, but for dinner, for your gift of $13 cash, we give you a gift of dinner - joining us for a yummy family-style Chinese dinner - tax and tip included (your gift also helps in our patronizing the restaurant venue). ------------------------------ For our 2012-04-17 meeting BALUG is proud to present: Ubuntu[1] 12.04[2] LTS[3] Precise Pangolin[2] presented by: Grant Bowman[4] & Elizabeth Krumbach[5] Ubuntu's newest Long Term Support (LTS) release, Ubuntu 12.04 LTS Precise Pangolin, is scheduled to be released 2012-04-26. At this meeting, we'll have co-presented from two wonderful local Ubuntu experts, information on Ubuntu, and what to find and expect in this latest Ubuntu LTS release. Topics covered will include major improvements to the Unity[6] desktop environment and new features you can expect related to the Ubuntu Server[7] and the new Ubuntu Cloud[8] images. Grant Bowman has been a consultant and Internet professional for over twenty years including a former Director of Silicon Valley Public Access Link (SV-PAL)[9] ISP serving Santa Clara County and a present Director of Partimus[10] serving San Francisco and Alameda County middle schools with recycled computers, open source software, training and support. He is an OLPC Developer, Ubuntu Member[11], Fedora[12] Ambassador, Debian[13] Developer and former employee of SUSE[14]. Active Habits[15] is a forthcoming Android app. He is also active with Berkeley Linux Users Group[16], Berkeley Unix User Group (BUUG)[17], Noisebridge[18], San Francisco Linux Users' Group (SF-LUG)[19] and also Diablo Valley Linux Users Group (DVLUG)[20] (every Friday in Walnut Creek). Elizabeth Krumbach works as a Debian[13] Systems Administrator and currently holds a position on the Ubuntu Community Council[21]. 1. http://www.ubuntu.com/ 2. https://wiki.ubuntu.com/PrecisePangolin 3. https://wiki.ubuntu.com/LTS 4. http://www.grantbow.com/ 5. http://princessleia.com/ 6. http://en.wikipedia.org/wiki/Unity_(user_interface) 7. http://www.ubuntu.com/business/server/overview 8. http://www.ubuntu.com/cloud 9. http://www.svpal.org/ 10. http://partimus.org/ 11. https://wiki.ubuntu.com/Membership 12. http://fedoraproject.org/ 13. http://www.debian.org/ 14. http://www.suse.com/ 15. http://www.activehabits.com/ 16. http://www.berkeleylug.com/ 17. http://www.buug.org/ 18. http://www.noisebridge.net/ 19. http://www.sf-lug.com/ 20. http://www.dvlug.org/ 21. https://wiki.ubuntu.com/CommunityCouncil ------------------------------ For our 2012-05-15 meeting BALUG is proud to present: Corey Quinn: Salt[1]. Configuration Management and Remote Execution at Scale Corey Quinn has been finding new and better ways to be lazy via configuration management since discovering that "ssh in a for loop" didn't scale. He's a volunteer for the freenode[2] IRC[3] network, and splits his time between Los Angeles and San Francisco, where he's the director of systems operations at Expensify.com[4], helping make expense reports not suck. 1. http://saltstack.org/ 2. http://freenode.net/ 3. http://en.wikipedia.org/wiki/Internet_Relay_Chat 4. https://www.expensify.com/ ------------------------------ 2012-02-21 OpenPhoto Project - Jaisen Mathai Missed last month's meeting, or want to review the "slides"? have a peek here: http://lists.balug.org/pipermail/balug-talk-balug.org/2012-February/004794.html ------------------------------ CDs, and other "door prizes", etc. Goodies we'll have at the meeting (at least the following): CDs, etc. - have a peek here: http://www.wiki.balug.org/wiki/doku.php?id=balug:cds_and_images_etc We do also have some additional give-away items, and may have "door prizes". ------------------------------ volunteering to help BALUG Want to volunteer to help out BALUG? (quite a variety of opportunities) Drop us a note at: balug-contact at balug.org Or come talk to us at a BALUG meeting. ------------------------------ Feedback on our publicity/announcements (e.g. contacts or lists where we should get our information out that we're not presently reaching, or things we should do differently): publicity-feedback at balug.org ------------------------------ http://www.balug.org/ From john_re at fastmail.us Mon Mar 19 23:17:28 2012 From: john_re at fastmail.us (giovanni_re) Date: Mon, 19 Mar 2012 23:17:28 -0700 Subject: [sf-lug] Fwd: [BALUG-Talk] CyanogenMod meeting 6PM (before BALUG, @ 4Seas) (& Android root & ROMing) Tuesday Mar 20 Message-ID: <1332224248.31717.140661051493577@webmail.messagingengine.com> Interested in CyanogenMod - the community created ROM for Android based HW? Interested in rooting or ROMing your Android device? Then come by the BALUG meeting location (Four Seas restaurant) half an hour before BALUG starts i.e 6PM, & share tips, discuss, ask questions, help each other, etc. http://www.balug.org/ (This is a community event, independent of BALUG, conveniently located for BALUG attendees. Everyone welcome. Check out the BALUG meeting topic, RSVP for balug & attend balug too. :) ) http://www.cyanogenmod.com/ Feel free to order some great food from 4Seas. :) _______________________________________________ BALUG-Talk mailing list BALUG-Talk at lists.balug.org http://lists.balug.org/listinfo.cgi/balug-talk-balug.org == Smartphone Debian: http://wiki.debian.org/Smartphone Join in the Global monthly meetings, via voice, about all Free SW HW & Culture: http://sites.google.com/site/berkeleytip/ http://groups.google.com/group/BerkTIPGlobal - Join the mail list. :) From einfeldt at gmail.com Tue Mar 20 11:38:49 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Tue, 20 Mar 2012 11:38:49 -0700 Subject: [sf-lug] Another Triagefest! Message-ID: Hi, If you missed last week's triagefest at the Creative Arts public charter school, here's another chance to come and hang out and triage Linux machines! This Saturday from 10:30 to 3:00, there will be a triagefest at the Creative Arts Charter School at 1601 Turk Street at the corner of Pierce Street in San Francisco. This is the school that had that huge fire on 12/22/11. More about that fire here: http://blog.partimus.org/?p=159 The purpose of this triage fest is to separate good equipment from bad equipment. Volunteers with a pick-up truck for moving equipment 3 blocks would be particularly appreciated. Pizza will be served at 12:30 p.m. Please bring with you everything that you would need to test a computer and its peripheral equipment, and to take a computer apart and put it back together. It would also be good to bring Ubuntu 10.04 on a flash drive, since we will be installing that distro on some machines. This public charter school relies on our Linux computers heavily for the work that their students do, so they will definitely appreciate the work! Thanks in advance to all volunteers! -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbpuig at sbcglobal.net Wed Mar 21 15:23:55 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Wed, 21 Mar 2012 15:23:55 -0700 (PDT) Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge Message-ID: <1332368635.11124.YahooMailRC@web83804.mail.sp1.yahoo.com> The SF-LUG Linux Study Group hosts a general Linux Discussion meeting at Noisebridge on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From jim at well.com Wed Mar 21 19:58:19 2012 From: jim at well.com (jim) Date: Wed, 21 Mar 2012 19:58:19 -0700 Subject: [sf-lug] linux was discussed at noisebridge, wednesday 20120321:18:00 and thereafter Message-ID: <1332385099.1750.18.camel@jim-LAPTOP> Noisebridge, Wed 6 to 8 PM 20120321: Eric Rasmussen showed up with a ipod nano strapped to his wrist and a grin on his face. Yeah, but can you put Linux on it? Eric's idea is to make a partition on his 16GB ipod nano storage and somehow or another get that partition to boot linux. Typing in ipod nano linux got me home.gna.org/linux4nano which told me it's been subsummed [sic] by www.freemyipod.org/wiki/Main_Page Discussion shifted to Rockbox, an alternate OS music player for ipods, including ipod nano v1 and 2. Someone besides me is using Ubuntu 10.04 and, unlike me, is also fiddling with Ubuntu 12.04. I'm chicken. and I've got a year of support left for 10.04. uh oh: people are leaving to get food. From grantbow at ubuntu.com Wed Mar 21 22:27:49 2012 From: grantbow at ubuntu.com (Grant Bowman) Date: Wed, 21 Mar 2012 22:27:49 -0700 Subject: [sf-lug] linux was discussed at noisebridge, wednesday 20120321:18:00 and thereafter In-Reply-To: <1332385099.1750.18.camel@jim-LAPTOP> References: <1332385099.1750.18.camel@jim-LAPTOP> Message-ID: On Wed, Mar 21, 2012 at 7:58 PM, jim wrote: > > Noisebridge, Wed 6 to 8 PM 20120321: > ? ?Eric Rasmussen showed up with a ipod nano strapped > to his wrist and a grin on his face. > ? ?Yeah, but can you put Linux on it? > ? ?Eric's idea is to make a partition on his 16GB > ipod nano storage and somehow or another get that > partition to boot linux. > ? ?Typing in ipod nano linux got me > home.gna.org/linux4nano > ? ?which told me it's been subsummed [sic] by > www.freemyipod.org/wiki/Main_Page > > ? ?Discussion shifted to Rockbox, an alternate OS > music player for ipods, including ipod nano v1 and 2. http://www.rockbox.org runs OK on older ipods. > ? ?Someone besides me is using Ubuntu 10.04 and, > unlike me, is also fiddling with Ubuntu 12.04. I'm > chicken. and I've got a year of support left for > 10.04. Unfortunately the new Samsung Galaxy Nexus phone won't sync with 10.04 because Android now uses the MTP protocol http://en.wikipedia.org/wiki/Media_Transfer_Protocol to copy stuff to and from the phone which isn't supported by 10.04. Older android phones use USB Mass Storage. This allows for non-volume sharing but requires the OS to support it. MTP is one of the reasons I'm fiddling with 12.04. Please join http://twitter.com/pleia2 and I http://twitter.com/grantbow next month Tuesday, 4/17 at http://balug.org for a presentation on 12.04 to be released nine days later. Also please join the Ubuntu community coming to Oakland for http://uds.ubuntu.com Mon, May 7th - 11th at the Marriott near the 12th St. BART station. > ? ?uh oh: people are leaving to get food. Cheers, Grant From rick at linuxmafia.com Thu Mar 22 01:42:12 2012 From: rick at linuxmafia.com (Rick Moen) Date: Thu, 22 Mar 2012 01:42:12 -0700 Subject: [sf-lug] linux was discussed at noisebridge, wednesday 20120321:18:00 and thereafter In-Reply-To: References: <1332385099.1750.18.camel@jim-LAPTOP> Message-ID: <20120322084212.GA6203@linuxmafia.com> Quoting Grant Bowman (grantbow at ubuntu.com): > Unfortunately the new Samsung Galaxy Nexus phone won't sync with 10.04 > because Android now uses the MTP protocol > http://en.wikipedia.org/wiki/Media_Transfer_Protocol to copy stuff to > and from the phone which isn't supported by 10.04. Grant, why don't you just install libmtp? You shouldn't have to install an entire betaware operating system just to get a new userspace package. Even if there weren't downloadable debs, which in fact there are (http://ubuntu.osuosl.org/ubuntu/pool/main/libm/libmtp/), and which I seriously doubt impose any dependency problems, even if you use the binary deb. If there weren't debs: Download libmtp-1.1.1.tar.gz from https://sourceforge.net/projects/libmtp/files/libmtp/ to your favourite scratch directory. (I use /tmp.) tar xvzf libmtp-1.1.1.tar.gz cd libmtp ./configure # You'll need to have build-essential and libusb-dev make sudo make install Done. I assume you know how to get a recent version of Amarok (1.4.2 or higher) or Gnomad (2.8.3 or higher), or whatever front-end you like. From einfeldt at gmail.com Fri Mar 23 18:22:11 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 23 Mar 2012 18:22:11 -0700 Subject: [sf-lug] Another Triagefest! In-Reply-To: References: Message-ID: Hi, Just a reminder about tomorrow's triagefest! We are doing great things for Linux in public schools! On Tue, Mar 20, 2012 at 11:38 AM, Christian Einfeldt wrote: > Hi, > > If you missed last week's triagefest at the Creative Arts public charter > school, here's another chance to come and hang out and triage Linux > machines! > > This Saturday from 10:30 to 3:00, there will be a triagefest at the > Creative Arts Charter School at 1601 Turk Street at the corner of Pierce > Street in San Francisco. This is the school that had that huge fire on > 12/22/11. More about that fire here: > > http://blog.partimus.org/?p=159 > > The purpose of this triage fest is to separate good equipment from bad > equipment. Volunteers with a pick-up truck for moving equipment 3 blocks > would be particularly appreciated. > > Pizza will be served at 12:30 p.m. > > Please bring with you everything that you would need to test a computer > and its peripheral equipment, and to take a computer apart and put it back > together. It would also be good to bring Ubuntu 10.04 on a flash drive, > since we will be installing that distro on some machines. > > This public charter school relies on our Linux computers heavily for the > work that their students do, so they will definitely appreciate the work! > Thanks in advance to all volunteers! > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From einfeldt at gmail.com Fri Mar 23 18:26:23 2012 From: einfeldt at gmail.com (Christian Einfeldt) Date: Fri, 23 Mar 2012 18:26:23 -0700 Subject: [sf-lug] Another Triagefest! In-Reply-To: References: Message-ID: Hi, one more thing.. Please call me at 415-351-1300 when you arrive at the school so that I can let you in! On Fri, Mar 23, 2012 at 6:22 PM, Christian Einfeldt wrote: > Hi, > > Just a reminder about tomorrow's triagefest! We are doing great things > for Linux in public schools! > > > On Tue, Mar 20, 2012 at 11:38 AM, Christian Einfeldt wrote: > >> Hi, >> >> If you missed last week's triagefest at the Creative Arts public charter >> school, here's another chance to come and hang out and triage Linux >> machines! >> >> This Saturday from 10:30 to 3:00, there will be a triagefest at the >> Creative Arts Charter School at 1601 Turk Street at the corner of Pierce >> Street in San Francisco. This is the school that had that huge fire on >> 12/22/11. More about that fire here: >> >> http://blog.partimus.org/?p=159 >> >> The purpose of this triage fest is to separate good equipment from bad >> equipment. Volunteers with a pick-up truck for moving equipment 3 blocks >> would be particularly appreciated. >> >> Pizza will be served at 12:30 p.m. >> >> Please bring with you everything that you would need to test a computer >> and its peripheral equipment, and to take a computer apart and put it back >> together. It would also be good to bring Ubuntu 10.04 on a flash drive, >> since we will be installing that distro on some machines. >> >> This public charter school relies on our Linux computers heavily for the >> work that their students do, so they will definitely appreciate the work! >> Thanks in advance to all volunteers! >> >> > > -- Christian Einfeldt -------------- next part -------------- An HTML attachment was scrubbed... URL: From ronald.petty at gmail.com Sat Mar 24 13:58:02 2012 From: ronald.petty at gmail.com (Ronald Petty) Date: Sat, 24 Mar 2012 13:58:02 -0700 Subject: [sf-lug] Work Question Message-ID: Hello, Is there a job related mailing list for the mafia? I did not see one on the website? Regards. Ron -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim at well.com Sat Mar 24 14:11:04 2012 From: jim at well.com (jim) Date: Sat, 24 Mar 2012 14:11:04 -0700 Subject: [sf-lug] Work Question In-Reply-To: References: Message-ID: <1332623464.1713.60.camel@jim-LAPTOP> People who post jobs do so through me. I vet their ads and then post them to the list. There's not a separate mailing list. On Sat, 2012-03-24 at 13:58 -0700, Ronald Petty wrote: > Hello, > > > Is there a job related mailing list for the mafia? I did not see one > on the website? > > > Regards. > > > Ron > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Sat Mar 24 14:58:40 2012 From: rick at linuxmafia.com (Rick Moen) Date: Sat, 24 Mar 2012 14:58:40 -0700 Subject: [sf-lug] Work Question In-Reply-To: References: Message-ID: <20120324215840.GS6203@linuxmafia.com> Quoting Ronald Petty (ronald.petty at gmail.com): > Hello, > > Is there a job related mailing list for the mafia? I did not see one on > the website? I believe the mafia let _you_ know when they want you to 'do a job'. Anyway, these might help: http://www.svlug.org/farm.php#jobs From eric at ericwalstad.com Sat Mar 24 15:11:46 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sat, 24 Mar 2012 15:11:46 -0700 Subject: [sf-lug] Grub question Message-ID: I have a linux box that functions as a remote weather station. Long story short, sometimes it gets powered off a few times in a row without doing a proper shutdown. I think that is what is causing Grub to boot into a maintenance shell, which means I have to drive to the remote site to attach a keyboard and monitor and type 'reboot' to get it to go through the normal bootup. I'm working on the problem of ensuring a clean shutdown when power is about to go away, but in the mean time, do any of you know how to keep Grub from behaving this way? I'd rather it always boot when power is applied. Thanks! Eric From larry.cafiero at gmail.com Sat Mar 24 15:24:27 2012 From: larry.cafiero at gmail.com (Larry Cafiero) Date: Sat, 24 Mar 2012 15:24:27 -0700 Subject: [sf-lug] Work Question In-Reply-To: <20120324215840.GS6203@linuxmafia.com> References: <20120324215840.GS6203@linuxmafia.com> Message-ID: On Sat, Mar 24, 2012 at 2:58 PM, Rick Moen wrote: > Quoting Ronald Petty (ronald.petty at gmail.com): > >> Hello, >> >> Is there a job related mailing list for the mafia? ?I did not see one on >> the website? > > I believe the mafia let _you_ know when they want you to 'do a job'. Rats! Rick beat me to it. Very funny. Larry Cafiero From conor.list at gmail.com Sat Mar 24 16:37:48 2012 From: conor.list at gmail.com (conor.list at gmail.com) Date: Sat, 24 Mar 2012 16:37:48 -0700 Subject: [sf-lug] Grub question In-Reply-To: References: Message-ID: /etc/grub/default.conf has a setting 'GRUB_DISABLE_RECOVERY' that looks promising. -conor On Mar 24, 2012, at 3:11 PM, Eric Walstad wrote: > I have a linux box that functions as a remote weather station. Long > story short, sometimes it gets powered off a few times in a row > without doing a proper shutdown. I think that is what is causing Grub > to boot into a maintenance shell, which means I have to drive to the > remote site to attach a keyboard and monitor and type 'reboot' to get > it to go through the normal bootup. > > I'm working on the problem of ensuring a clean shutdown when power is > about to go away, but in the mean time, do any of you know how to keep > Grub from behaving this way? I'd rather it always boot when power is > applied. > > Thanks! > > Eric > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From rick at linuxmafia.com Sat Mar 24 18:45:58 2012 From: rick at linuxmafia.com (Rick Moen) Date: Sat, 24 Mar 2012 18:45:58 -0700 Subject: [sf-lug] Work Question In-Reply-To: References: <20120324215840.GS6203@linuxmafia.com> Message-ID: <20120325014558.GT6203@linuxmafia.com> Quoting Larry Cafiero (larry.cafiero at gmail.com): > Rats! Rick beat me to it. Very funny. You should see the bemused mail that I got from the linuxsicilia.it guy, about my choice of domain name. From Michael.Paoli at cal.berkeley.edu Sat Mar 24 22:40:01 2012 From: Michael.Paoli at cal.berkeley.edu (Michael Paoli) Date: Sat, 24 Mar 2012 22:40:01 -0700 Subject: [sf-lug] Grub question In-Reply-To: References: Message-ID: <20120324224001.18165hlzggxvic08@webmail.rawbw.com> I'm presuming we're talking GRUB "2" (not "legacy" grub). I believe the GRUB_DISABLE_RECOVERY option just prevents grub from creating menu entries with recovery boot option (e.g. separate additional entries for Linux kernel with additional boot parameter of "single" for single user mode) - so that option is probably wouldn't help in the case cited. First question is - why - beyond the obvious repeated, and potentially unpredictable, power disruptions, is it getting "stuck" - presumably in the boot process. A few possibilities come to mind - and some possible ways of addressing them (even if power isn't addressed). And by "maintenance shell" - is that Linux in, or prompting to go into single user mode? ... and is that from filesystem(s) too unclean for the default unattended filesystem check/fix/mounts to succeed? Anyway, a few things ... Be sure the default GRUB entry that's booted is for multiuser mode. Also, for quicker unattended reboots, make sure the timeout is "short enough" (but not too short that one can't reasonably easily interrupt it if/when one wants to). Highly recommended, in such scenario (frequent and unpredictable power outages to host), use filesystems with journaling - that will help both with integrity/recoverability, and generally significantly speed recovery. It may be desirable to separate out various filesystems, and to the extent feasible, have filesystems mounted read-only most of the time. E.g. /usr (per FHS , etc.) can be mounted read-only most of the time. That may thus speed boot/recovery time, by having fewer/smaller filesystems that need checking after a system crash (if filesystem was unmounted or mounted read-only when system crashed, at reboot it's generally clean and requires no additional checking before being mounted again). For faster reboots, it may also be desirable to have the noauto option set in /etc/fstab for filesystems that aren't essential for initial running of multiuser mode (e.g. restoring remote access). One can then come up to initial multiuser mode, and further (e.g. rc) scripts can then handle checking/mounting additional desired filesystems and starting the applications that need those filesystems - one could also potentially configure a separate runlevel for that. For some filesystem types (e.g. ext2/ext3/ext4), one can tune (tune2fs) various check parameters - that may help with the filesystems (not) being checked too (in)frequently at boot/mount, and may potentially reduce problems. One might want to set configuration option(s) and/or filesystems to force a complete check upon (re)boot. That might take (possibly much) longer to boot, but may keep filesystems in better shape, particularly with repeated unpredictable host power outages (including also, e.g., additional power outages while filesystem checks are in progress, etc.). Watchdog timers - it may be useful to enable watchdog timers - that could potentially prevent some system hangs - not only more conventional hangs/lockups, but if, e.g., power glitch puts hardware in funky state and system hangs on stuck I/O ... if system is still "alive enough" that watchdog timer works, that would then force a reset, from which things would presumably (likely) then recover. Some time of remote management could come in quite handy (e.g. IPMI). One could then potentially remotely reset host, effectively access (at least text) console, etc. And if not already in place, monitoring would be good to know when some issue needed to be attended to (whether it could be fixed remotely ... or not). And, ... when in doubt, test. :-) > From: conor.list at gmail.com > Date: Sat Mar 24 16:37:48 PDT 2012 > > /etc/grub/default.conf has a setting 'GRUB_DISABLE_RECOVERY' that > looks promising. > > On Mar 24, 2012, at 3:11 PM, Eric Walstad wrote: > > > I have a linux box that functions as a remote weather station. Long > > story short, sometimes it gets powered off a few times in a row > > without doing a proper shutdown. I think that is what is causing Grub > > to boot into a maintenance shell, which means I have to drive to the > > remote site to attach a keyboard and monitor and type 'reboot' to get > > it to go through the normal bootup. > > > > I'm working on the problem of ensuring a clean shutdown when power is > > about to go away, but in the mean time, do any of you know how to keep > > Grub from behaving this way? I'd rather it always boot when power is > > applied. From JStrazza at yahoo.com Sun Mar 25 12:14:58 2012 From: JStrazza at yahoo.com (John Strazzarino) Date: Sun, 25 Mar 2012 12:14:58 -0700 Subject: [sf-lug] Linux weather station Message-ID: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> Let's hear more about this weather station..blog...website? Sent from my iPad From eric at ericwalstad.com Sun Mar 25 12:22:01 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 12:22:01 -0700 Subject: [sf-lug] Grub question In-Reply-To: References: Message-ID: Ugh, just realized I was not replying to the list. Sorry... EW ---------- Forwarded message ---------- From: Eric Walstad Date: Sat, Mar 24, 2012 at 5:40 PM Subject: Re: [sf-lug] Grub question To: conor.list at gmail.com Ah, thanks for the lead. ?I forgot to mention versions: Grub2 on Ubuntu server 11.04. ?I found a similar 'GRUB_DISABLE_LINUX_RECOVERY' setting but it appears to only disable the menu item. ?There's talk of a fallback mode but the linked page is in German and I wasn't able to grok the google-translated page and its bash script. https://help.ubuntu.com/community/Grub2#Fallback_mode EW On Sat, Mar 24, 2012 at 4:37 PM, ? wrote: > /etc/grub/default.conf has a setting 'GRUB_DISABLE_RECOVERY' that looks promising. > > -conor > > > On Mar 24, 2012, at 3:11 PM, Eric Walstad wrote: > >> I have a linux box that functions as a remote weather station. ?Long >> story short, sometimes it gets powered off a few times in a row >> without doing a proper shutdown. ?I think that is what is causing Grub >> to boot into a maintenance shell, which means I have to drive to the >> remote site to attach a keyboard and monitor and type 'reboot' to get >> it to go through the normal bootup. >> >> I'm working on the problem of ensuring a clean shutdown when power is >> about to go away, but in the mean time, do any of you know how to keep >> Grub from behaving this way? ?I'd rather it always boot when power is >> applied. >> >> Thanks! >> >> Eric >> >> _______________________________________________ >> sf-lug mailing list >> sf-lug at linuxmafia.com >> http://linuxmafia.com/mailman/listinfo/sf-lug >> Information about SF-LUG is at http://www.sf-lug.org/ From eric at ericwalstad.com Sun Mar 25 12:22:48 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 12:22:48 -0700 Subject: [sf-lug] Grub question In-Reply-To: References: <20120324224001.18165hlzggxvic08@webmail.rawbw.com> Message-ID: Hi MIchael On Sat, Mar 24, 2012 at 10:40 PM, Michael Paoli wrote: > I'm presuming we're talking GRUB "2" (not "legacy" grub). Yep. ?Hmm, > I believe the GRUB_DISABLE_RECOVERY option just prevents grub from > creating menu entries with recovery boot option (e.g. separate > additional entries for Linux kernel with additional boot parameter of > "single" for single user mode) - so that option is probably wouldn't > help in the case cited. That's what it looked like to me. ?Thanks for confirming it. > First question is - why - beyond the obvious repeated, and potentially > unpredictable, power disruptions, is it getting "stuck" - presumably in > the boot process. ?A few possibilities come to mind - and some possible > ways of addressing them (even if power isn't addressed). The installation is really remote, sometimes snowed-in, and off-grid[0]. ?It's solar powered. ?To reduce power consumption (and thus the number of solar panels that are needed, I only run the computer during the daylight hours. Power is cycled off at sundown and cycled on at sunrise. ?The computer is configured to shut itself down well before sundown and to turn on when it senses power is available. I suspect that what is happening is that after a few days of overcast sky the battery voltage drops close to, but not quite below, the charge controller's "LVD" (low voltage disconnect) setpoint. ?Then, when the sun comes up, the power comes on. ?As the computer boots, it pulls the battery voltage below the LVD and the charge controller disconnects the load (to protect the battery) during the boot process. > And by "maintenance shell" - is that Linux in, or prompting to go into > single user mode? ... and is that from filesystem(s) too unclean for the > default unattended filesystem check/fix/mounts to succeed? I just read that there are three possible "recovery" destinations with grub2. ?I don't know which one I'm landing in, I'll pay closer attention next time this happens. ?I've never had to fsck or do any maintenance. ?Come to think of it, I think that when I boot it with the monitor and keyboard attached it stops at the grub menu waiting for me to manually select the menu item and press Enter. ?Urgh, that's frustrating considering it's a 4+hr drive to just hit "Enter". > Anyway, a few things ... > > Be sure the default GRUB entry that's booted is > for multiuser mode. ?Also, for quicker unattended reboots, make sure > the timeout is "short enough" (but not too short that one can't > reasonably easily interrupt it if/when one wants to). Yeah, that's a good idea. ?I think I'm using the default of, what is it, 10s? ?It boots pretty fast and if I can just get past the boot sequence before the LVD happens I'd be in better shape. ?Ultimately I'd like to be able to have it check the (external) battery voltage and shutdown if low, similar to how it's done with laptops. ?If you have any experience or suggestions, I'd appreciate hearing them. (Here's the hardware I'm currently running[1]) > Some time of remote management could come in quite handy (e.g. IPMI). > One could then potentially remotely reset host, effectively access (at > least text) console, etc. There's no inbound network access, unfortunately. ?Also, this is a hobby project that is constrained in just about every parameter imaginable, including financial ;). Thanks very much for your thoughtful comments, much appreciated! Eric [0] http://flic.kr/p/99ZMA4 [1] ASUS TS Mini SOHO Home Server w/ Intel Atom N280 1.66GHz 1GB DDR2 with an smallish SSD. From eric at ericwalstad.com Sun Mar 25 12:26:19 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 12:26:19 -0700 Subject: [sf-lug] Linux weather station In-Reply-To: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> References: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> Message-ID: On Sun, Mar 25, 2012 at 12:14 PM, John Strazzarino wrote: > Let's hear more about this weather station..blog...website? The 'big idea' was to get a timelapse movie of a cabin getting built. Here's the video; the video description has project details: http://sn.im/solar_powered_wx_station Eric. From eric at ericwalstad.com Sun Mar 25 12:31:55 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 12:31:55 -0700 Subject: [sf-lug] Linux weather station In-Reply-To: References: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> Message-ID: On Sun, Mar 25, 2012 at 12:26 PM, Eric Walstad wrote: > Here's the video; the video description has project details: > ?http://sn.im/solar_powered_wx_station Sorry, that link was to a bunch of project photos on Picassa (which includes a link to the video). Here's the video: http://www.youtube.com/watch?v=Zazq7iUHTNI EW From mmdmurphy at gmail.com Sun Mar 25 12:37:37 2012 From: mmdmurphy at gmail.com (Dan Murphy) Date: Sun, 25 Mar 2012 12:37:37 -0700 Subject: [sf-lug] Linux weather station In-Reply-To: References: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> Message-ID: I am torn between saying it looks like a cool project and I'd like more info (costs) or saying Doesn't the weather service do this? On Sun, Mar 25, 2012 at 12:31 PM, Eric Walstad wrote: > On Sun, Mar 25, 2012 at 12:26 PM, Eric Walstad wrote: >> Here's the video; the video description has project details: >> ?http://sn.im/solar_powered_wx_station > > Sorry, that link was to a bunch of project photos on Picassa (which > includes a link to the video). ?Here's the video: > http://www.youtube.com/watch?v=Zazq7iUHTNI > > EW > > _______________________________________________ > sf-lug mailing list > sf-lug at linuxmafia.com > http://linuxmafia.com/mailman/listinfo/sf-lug > Information about SF-LUG is at http://www.sf-lug.org/ From eric at ericwalstad.com Sun Mar 25 12:58:49 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 12:58:49 -0700 Subject: [sf-lug] Linux weather station In-Reply-To: References: <94463CA4-2079-4AB3-AD86-D0B109AD8672@yahoo.com> Message-ID: Hi Dan, On Sun, Mar 25, 2012 at 12:37 PM, Dan Murphy wrote: > I am torn between saying it looks like a cool project and I'd like > more info (costs) I try not to look too closely at how much I've spent on this project, especially the number of hours I've put into it. It's a for-fun-and-learning project and I've had a great time making many mistakes and learning from them. I like being able to see how much snow is on the ground, too. > or saying Doesn't the weather service do this? Yeah, there are great weather services out there, but none that collect images and data at my site. From akkana at shallowsky.com Sun Mar 25 18:01:47 2012 From: akkana at shallowsky.com (Akkana Peck) Date: Sun, 25 Mar 2012 18:01:47 -0700 Subject: [sf-lug] Grub question In-Reply-To: References: <20120324224001.18165hlzggxvic08@webmail.rawbw.com> Message-ID: <20120326010147.GA1508@shallowsky.com> Eric Walstad writes: > I just read that there are three possible "recovery" destinations with > grub2. ?I don't know which one I'm landing in, I'll pay closer > attention next time this happens. If it gets to be too annoying, keep in mind that you don't have to use grub2. Grub1 has gotten a bit difficult to install lately (last time I tried to install it on a Debian system, it installed a half-grub1 half-grub2 monstrosity that didn't work; Ubuntu may be better) but extlinux is nice and simple and easy to deal with. I converted my machines to extlinux late last year, and wrote a howto here: http://shallowsky.com/blog/linux/install/extlinux.html ...Akkana From eric at ericwalstad.com Sun Mar 25 19:52:14 2012 From: eric at ericwalstad.com (Eric Walstad) Date: Sun, 25 Mar 2012 19:52:14 -0700 Subject: [sf-lug] Grub question In-Reply-To: <20120326010147.GA1508@shallowsky.com> References: <20120324224001.18165hlzggxvic08@webmail.rawbw.com> <20120326010147.GA1508@shallowsky.com> Message-ID: On Sun, Mar 25, 2012 at 6:01 PM, Akkana Peck wrote: > Eric Walstad writes: >> I just read that there are three possible "recovery" destinations with >> grub2. ?I don't know which one I'm landing in, I'll pay closer >> attention next time this happens. > > If it gets to be too annoying, keep in mind that you don't have to > use grub2. Grub1 has gotten a bit difficult to install lately > (last time I tried to install it on a Debian system, it installed > a half-grub1 half-grub2 monstrosity that didn't work; Ubuntu may > be better) but extlinux is nice and simple and easy to deal with. > I converted my machines to extlinux late last year, and wrote a > howto here: http://shallowsky.com/blog/linux/install/extlinux.html > > ? ? ? ?...Akkana Yeah, I was thinking about giving lilo a try again but I'll keep extlinux in mind if I can't work around the problem I'm having with grub2. Thanks for the pointer to your howto. I also enjoyed your mtb and rc pages. EW From bliss-sf4ever at dslextreme.com Mon Mar 26 10:56:30 2012 From: bliss-sf4ever at dslextreme.com (Bobbie Sellers) Date: Mon, 26 Mar 2012 10:56:30 -0700 Subject: [sf-lug] SF Lug meeting next Sunday, April the First Message-ID: <4F70ADCE.7000808@dslextreme.com> No Joke! SF-LUG meets every first Sunday from 11 A.M. to 1 P.M. at the Cafe Enchante, 26th and Geary Boulevard. These meetings are usually lightly attended with a high for the year so far of 6 members. If you have a problem come along and maybe we can help but if not we can usually find someone who can. Bobbie Sellers From jbpuig at sbcglobal.net Tue Mar 27 19:37:26 2012 From: jbpuig at sbcglobal.net (Joseph Puig) Date: Tue, 27 Mar 2012 19:37:26 -0700 (PDT) Subject: [sf-lug] Meeting Reminder - SF-LUG LSG Linux Discussion at Noisebridge Message-ID: <1332902246.50482.YahooMailRC@web83803.mail.sp1.yahoo.com> The SF-LUG Linux Study Group hosts a general Linux Discussion meeting at Noisebridge on Wednesday evenings, from 6:00 PM to 8:00 PM (or so) in the Turing classroom. Noisebridge is located at 2169 Mission Street, very near 18th Street, in San Francisco. Info: www.sf-lug.com and www.noisebridge.net Joseph From sverma at sfsu.edu Wed Mar 28 12:36:37 2012 From: sverma at sfsu.edu (Sameer Verma) Date: Wed, 28 Mar 2012 12:36:37 -0700 Subject: [sf-lug] OLPC work in Jamaica... Message-ID: Hello! I was on sabbatical leave at the University of the West Indies (UWI) in Fall 2008. There, I helped start the Center of Excellence (CoE) at the Mona School of Business at UWI. Through the CoE (http://coe-msb.org), we started the OLPC Jamaica project on September 5, 2008. Its been three and a half years since then, of an uphill battle to get the project going to fulfill its goals of early childhood education, technology in remote and rural places and community outreach and impact, not to mention supporting IT infrastructure (server, wireless LAN, content filtering, traffic management) remotely over a VPN for 5 year olds :-) Last year, we implemented 115 OLPC XO 1.5 laptops in two schools, and the results have been amazing. I was on a data collection trip over the break, and what we are finding through the initial analyses is impressive. An increase in numeracy by 12% ! The most sought-after program is TuxMath. Other results will be interesting as well, we hope. This is a brief on the project and a video clip (well worth the 12 minutes, I think) of what we have done so far. I think you Linuxers will enjoy the beginning :-) http://myspot.mona.uwi.edu/msb/news/olpc-jamaica-evolving-story These are *my* children :-) cheers, Sameer -- Sameer Verma, Ph.D. Professor, Information Systems San Francisco State University http://verma.sfsu.edu/ http://commons.sfsu.edu/ http://olpcsf.org/ http://olpcjamaica.org.jm/