Arch Linux

Vitsliputsli

Member

Registered: 2018-10-02

Posts: 9

Arch can't load modules after kernel upgrade

Its not a big problem, but uncomfortable. After every kernel upgrade, Arch can't load any module, because directory with modules for old kernel was deleted. It easy decide by rebooting, but that is uncomfortable in some times. I can decide it by created hooks for kernel upgrade. Hooks will save kernel modules directory into /tmp and create link to it. But I think is not good way, may be someone know better decision?

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: Arch can't load modules after kernel upgrade

Not a Pacman issue, moving to NC...

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Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: Arch can't load modules after kernel upgrade

Copying the modules before the upgrade and deleting them on the next shutdown or boot is the only method I know of.

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Vitsliputsli

Member

Registered: 2018-10-02

Posts: 9

Re: Arch can't load modules after kernel upgrade

Thank you for your answer. Yes, I realize it by pacman hooks: copy modules to /tmp and create link to it, after reboot /tmp clear automatically and next upgrade delete broken link. But It is not seems as nice decision, may be I choose wrong way...

progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: Arch can't load modules after kernel upgrade

You could create a systemd service that will delete the broken symlink on the next boot. There are two packages in the AUR that do something like that: kernel-modules-hook and kernel-alive-git. I never tried them, though.

Last edited by progandy (2019-03-08 23:05:12)

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| alias CUTF='LANG=en_XX.UTF-8@POSIX ' | alias ENGLISH='LANG=C.UTF-8 ' |

Vitsliputsli

Member

Registered: 2018-10-02

Posts: 9

Re: Arch can't load modules after kernel upgrade

Its not problem, I do it by pacman hook, they work well. I have hooks like these:

save-running-kernel-modules-pre.hook:

[Trigger]
Operation = Upgrade
Operation = Remove
Type = Package
Target = linux

[Action]
Depends = bash
Depends = find
Depends = mkdir
Depends = cp
When = PreTransaction
Exec = /usr/bin/bash -c "/usr/bin/find . -type l -exec test ! -e {} \; -delete; /usr/bin/mkdir -p /tmp/save-running-kernel-modules && /usr/bin/cp -a /usr/lib/modules/$(uname -r) /tmp/save-running-kernel-modules"

save-running-kernel-modules-post.hook:

[Trigger]
Operation = Upgrade
Operation = Remove
Type = Package
Target = linux

[Action]
Depends = bash
Depends = ln
When = PostTransaction
Exec = /usr/bin/bash -c "/usr/bin/ln -s /tmp/save-running-kernel-modules/$(uname -r) /usr/lib/modules/$(uname -r)"

Ok, I'll use these hooks, if there are no better decision.

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,531

Re: Arch can't load modules after kernel upgrade

https://bugs.archlinux.org/task/16702

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky

Vitsliputsli

Member

Registered: 2018-10-02

Posts: 9

Re: Arch can't load modules after kernel upgrade

Thank you. The bug 16702 describe backup of kernels (include initramfs and others). I don't think it is necessary, during 5 years I need this backup no time. But save running kernel modules until reboot is more useful.
In my opinion, good decision will be a kernel package with hooks like mine.

loqs

Member

Registered: 2014-03-06

Posts: 19,103

Re: Arch can't load modules after kernel upgrade

In my opinion, good decision will be a kernel package with hooks like mine.

https://bbs.archlinux.org/viewtopic.php … 0#p1833000