this post was submitted on 05 Jun 2025
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43
Linux server hangs on shutdown (lemmy.fish)
submitted 1 week ago by [email protected] to c/[email protected]
53 comments fedilink hide all child comments
 

I've had two server oses here: alma linux and debian(currently). On both of them, they will hang when I shut them down from cockpit, and they hang at the end of the shutdown.

Also, it takes an hour to a day to have this issue start. if it's restarted two times in a row quickly, it works perfectly fine for some reason.

What I've tried:

  • setting "acpi=off" and "acpi=force" kernel parameters in grub
  • removing my nvidia gpu(i was using nouveau drivers)
  • changing distros

nothing worked. here are some things that both distros had in common with eachother:

  • systemd
  • cockpit
  • libvirt & qemu
  • docker

does anyone have advice? nothing i've seen online has worked. thank you for suggestions

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[–] [email protected] 3 points 1 week ago (30 children)

Is it actual server hardware? I've seen some very weird things with real servers that take ages to reboot (I was assuming it was self checking or something). Are you sure its hung, and not just very slow to shutdown/reboot?

Is there any serial/monitor output before the hang?

[–] [email protected] 9 points 1 week ago (28 children)

Monitor output after shutting down:

I've given it 6 hours or so to shut down, so it's almost 100% a hang not a slow shutdown

[–] [email protected] 5 points 1 week ago (2 children)

I had this issue: failed to finalise remaining DM devices. Which led me to here https://github.com/systemd/systemd/issues/15004 and Skinner927 mentions your issue in that thread

I'd try uninstalling nouveau completely and see if the issue persists for you

[–] [email protected] 3 points 1 week ago (2 children)

The xserver-xorg-video-nouveau package was not installed, how else would I remove nouveau?

[–] [email protected] 2 points 1 week ago (1 children)

that's only the X11 "driver" for it. nouveau is built into the kernel, the way to "uninstall" it is to make it not get loaded, by blacklisting it

https://wiki.archlinux.org/title/Nouveau

but this does not seem to be the problem

[–] [email protected] 1 points 1 week ago

Agreed, lsmod | grep nouveau returns nothing, so I'm not concerned about nouveau or nvidia being the issue here.

[–] [email protected] 2 points 1 week ago (1 children)

I don't have an Nvidia GPU so I don't have any experience with it but a quick search brought me to Nvidias website and the instructions seem to line up with users answers on other forums.

Disable it here https://docs.nvidia.com/ai-enterprise/deployment/vmware/latest/nouveau.html or apparently installing Nvidias proprietary drivers automatically blacklists Nouveau.

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago)

lsmod | grep nouveau returns nothing, so I assume removing my gpu automatically stopped it from being loaded. that sorta rules out nouveau as an issue.

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