[conspire] Little Blue laptop

[Tony Godshall]

Yup, setting bios to use traditional booting methods ( turn off "secure
boot" and UEFI ) make installing anything that's not Microsoft a lot easier.



On Tue, Sep 4, 2018, 4:15 PM Rick Moen <rick at linuxmafia.com wrote:

> Quoting Elise Scher (elise.scher01 at gmail.com):
>
> > So I just hit ctrl alt delete again to try to restart. Got the following
> > output on screen:
> >
> > [    2.310960] PKCS#7 signature not signed with a trusted key
> > [    2.311363] PKCS#7 signature not signed with a trusted key
> > Similar erreo msgs for 13 more lines, with only the decimal number
> > changing. Values are below for decimal numbers:
> > 2,313892
> > 2.315027
> > 2.327113
> > 2.339880
> > 2.340271
> > 2.358375
> > 2.359458
> > 2.361559
> > 2.362181
> > 2.369255
> > 2.380620
> > 3.072994
> > 3.115769
>
> > Gave up waiting for root device. Common problems:
> > -Boot args: (cat /proc/cmdline)
> >   - Check rootdelay= did the system wait long enough?)
> >   - Check root= (did the system wait for the right device?)
> >
> > And there is more output too.     In next email.
>
> Thank you for taking the trouble to type all that in, which I'm sure
> took a lot of time and trouble.
>
> A bit of searching suggests
> (
> https://unix.stackexchange.com/questions/455189/pkcs7-signature-not-signed-with-a-trusted-key
> )
> that this is a common problem with the Ubuntu Linux 18.04 release put
> out this past April, and involves the booting kernel attempting to load
> kernel modules that haven't been signed as part of UEFI Secure Boot,
> with the result of the modules not loading.  As one of those modules
> was necessary for reading mass storage, the end-result was that the
> kernel as unable to mount the root filesystem.
>
> The best remedy would be to disable Secure Boot in the unit's BIOS Setup
> program.  This would be my strong recommendation -- assuming your
> computer's BIOS Setup gives you that capabiity.  The alternative would
> be to cryptographically sign the modules, which of course would be
> damned difficult with your machine not booting.
>
> More on that:
>
> https://askubuntu.com/questions/773734/how-to-install-module-ko-module-without-kernel-signature-or-kernel-rebuild-in-ub
> https://blog.ubuntu.com/2017/08/11/how-to-sign-things-for-secure-boot
>
>
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