[sf-lug] sudo abuse, suspend/shutdown, and polkit

[Rick Moen]

Quoting Akkana Peck (akkana at shallowsky.com):

[snip]

> And it may be that systemd's suspend
> and shutdown services require polkit to work:
> man systemd-logind.service suggests they may be joined at the hip.

I'm pretty sure that's the case.  My frequent characterisation is that
systemd, PolKit, upower, udisks2 (in particular) are a dependency
hairball of Freedesktop.org codebases.  They're written to require each
other (a large part of why I want to avoid them).

The old-school way of doing shutdown has always been:

$ su -
# shutdown -h now

_Or_ for lazy people like me, you do Ctrl-Alt-F1 to change to a text
console, do ctrl-alt-del to initiate orderly shutdown and reboot, but
then shut off the power switch before reboot gets very far.  (Thus, just
two keystrokes.)

I guess the old-school way of entering suspend-to-RAM is with

$ su -
# echo 2 > /proc/acpi/sleep

(Above is according to
https://github.com/torvalds/linux/blob/master/Documentation/power/swsusp.txt , 
but I'm not sure.

The pm-utils scripts (power management utilities) traditionally handled
such things prior to the Freedesktop.org people deciding to stop
maintaining those and force-upgrade everyone to upower.  I'm not clear
on whether those are still a best-of-breed option; possibly.  (I mostly
run Linux on servers, and don't do suspend.)

You might want to find out how the Devuan Project does suspend-to-RAM /
suspend-to-disk.  They'd know.