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#1 2021-11-13 15:04:46
- hardrock
- Member
- Registered: 2016-12-20
- Posts: 29
System wont boot after downgrading kernel
Hi, I just updated to linux 5.15.2. However I have a usb device that doesn't work with that kernel, so I downgraded it to 5.14 again.
I ran
pacman -U /var/cache/pacman/pkg/linux-5.14.9-x86_64.pkg.tar.xz
pacman -U /var/cache/pacman/pkg/linux-headers-5.14.9-x86_64.pkg.tar.xzI rebooted and the system wont boot anymore, it just shows a black screen with a cursor blinking on the top left.
How can I fix it?
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#2 2021-11-13 15:31:05
- Ammako
- Member
- Registered: 2021-07-16
- Posts: 267
Re: System wont boot after downgrading kernel
sudo mkinitcpio -P?
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#3 2021-11-13 15:45:20
- hardrock
- Member
- Registered: 2016-12-20
- Posts: 29
Re: System wont boot after downgrading kernel
sudo mkinitcpio -P?
Nop, that was ran without errors when I downgraded it. This is something else
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#4 2021-11-13 15:53:48
- Ammako
- Member
- Registered: 2021-07-16
- Posts: 267
Re: System wont boot after downgrading kernel
Oh yeah
If you use nvidia package, you need to downgrade that as well. Otherwise use nvidia-dkms, for less headache.
If you can switch to a tty (ctrl+alt+F2) and login, and run journalctl -b, you can look through that and that might help pinpoint the issue. Pipe the output into a text file that you can upload online if needed.
Last edited by Ammako (2021-11-13 15:55:54)
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#5 2021-11-13 16:35:10
- hardrock
- Member
- Registered: 2016-12-20
- Posts: 29
Re: System wont boot after downgrading kernel
Oh yeah
If you use nvidia package, you need to downgrade that as well. Otherwise use nvidia-dkms, for less headache.
If you can switch to a tty (ctrl+alt+F2) and login, and run journalctl -b, you can look through that and that might help pinpoint the issue. Pipe the output into a text file that you can upload online if needed.
Yep, nvidia was the problem. It's working now.
Thank you very much.
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