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#1 2024-12-08 23:26:33
- Brolupyr777
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- Registered: 2024-12-08
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[SOLVED] Kernel Panic After Failed Pacman Upgrade
After running "sudo pacman -Syu" my installation crashed and on the next reboot I have encountered a kernel panic.
Last edited by Brolupyr777 (2024-12-10 02:09:34)
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#2 2024-12-08 23:37:38
- cryptearth
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- Registered: 2024-02-03
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
it tells you right in the error message - your root uuid is wrong
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#3 2024-12-08 23:41:03
- Scimmia
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- Registered: 2012-09-01
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
That error is the kernel trying to mount root directly because no initramfs is being used. Boot an install disk, mount everything, chroot in, and reinstall your kernel. Really, reinstall all packages that were part of the failed update.
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#4 2024-12-09 01:16:58
- Brolupyr777
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
Problem fixed!
Commands used:
mount /dev/sdXn /mnt
mount /dev/sdYp /mnt/boot
arch-chroot /mnt
pacman -Syu linux
pacman -Syu base
mkinitcpio -P
grub-mkconfig -o /boot/grub/grub.cfg
exit
umount -R /mnt
rebootLast edited by Brolupyr777 (2024-12-09 02:21:39)
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#5 2024-12-09 07:09:31
- cryptearth
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- Registered: 2024-02-03
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
swapping the pacman lines - or rather combine them - avoids the manual mkinitcpio after them
otherwise: glad you were able to fix your system and thanks for reporting back with something that is helpful for others
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#6 2024-12-09 07:46:22
- seth
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
Problem fixed!
\o/
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.
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#7 2025-02-14 17:57:30
- dncwhy
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- Registered: 2025-02-14
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
Had similar issue, commands mentioned helped me restore ability to boot, yet it remained unusable, so I had to forcefully reinstall all packages:
pacman -Qqen > pkglist.txt
pacman --overwrite=* -S $(< pkglist.txt)Even though it is not recommended, it was the only thing that helped.
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#8 2025-02-14 20:20:48
- seth
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Re: [SOLVED] Kernel Panic After Failed Pacman Upgrade
Not only nort recommended, hardly necessary.
You wanted to have sanitized the database w/ a --dbonly pass first so you would not run into file collisions in a second pass for the actual re-installation.
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