Bug: can not poweroff - Githubissues

qiang-yu commented 2 years ago

2022-08-12 , make live ISO, the system can not poweroff

/sbin/poweroff

it would reboot intead of poweroff

it seems this is a bug

Tomas-M commented 2 years ago

What distro do you use as base? Does it have systemd?

uHash64 commented 2 years ago

same issue with debian 11 bullseye distro won't poweroff instead reboot if tyiping sudo poweroff systemctl shutdown -n now

nathanrsfba commented 2 years ago

I think I'm seeing the same problem using Slackware 15, which does not use systemd.

It looks like the shutdown script is calling 'reboot' or 'poweroff' without any arguments. Assuming the busybox versions work the same way as the normal ones, if the current runlevel isn't 0 or 6, it will call shutdown(8) to change the runlevel, instead of physically rebooting or powering off. The initramfs environment doesn't seem to have a utmp file (which stores the runlevel) so I think this is indeed what is happening.

Since the poweroff command fails, the script continues to a fallback command, which is to run "reboot -f"; the -f forces it to actually reboot instead of calling shutdown, so it works this time.

It seems that the fix is to call "reboot -f" or "poweroff -f" as appropriate, in the shutdown scripts.

Tomas-M commented 2 years ago

In general, it is necessary ro run the shutdown script from initramfs at the end of your distro's shutdown procedure instead of reboot/halt.

If your distro uses systemd, then this is done automatically, like it does in debian. However if your distro does not use systemd, you need to modify your shutdown scripts to call the shutdown script in /run/initramfs/shutdown manually at the end. For an examle, you can see https://github.com/Tomas-M/linux-live/blob/master/Slax/slackware15/modules/01-core/rootcopy/etc/rc.d/rc.6 (My changes are at the bottom)

I am unfortunately not sure why it does not work for @uHash64