Fedora 41: 6.12.10 Kernel Panic

# ls -l /boot/loader/entries
total 16
-rw-r--r--. 1 root root 468 Jan 28 21:56 4ad1f52fd13a4b26b5119278cff979ed-0-rescue.conf
-rw-r--r--. 1 root root 406 Jan 28 21:56 4ad1f52fd13a4b26b5119278cff979ed-6.11.4-301.fc41.x86_64.conf
-rw-r--r--. 1 root root 410 Jan 28 21:56 4ad1f52fd13a4b26b5119278cff979ed-6.12.10-200.fc41.x86_64.conf
-rw-r--r--. 1 root root 406 Jan 28 21:56 4ad1f52fd13a4b26b5119278cff979ed-6.12.9-200.fc41.x86_64.conf

# cat /boot/loader/entries
cat: /boot/loader/entries: Is a directory

# cat /etc/kernel/cmdline
root=UUID=e22f6ef7-cbef-478c-84de-3da2d771b7c4 ro rootflags=subvol=root rd.lvm.lv=fedora/root root=/dev/mapper/fedora-root rhgb quiet 

# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-6.12.9-200.fc41.x86_64 root=UUID=e22f6ef7-cbef-478c-84de-3da2d771b7c4 ro rootflags=subvol=root rhgb quiet

cat /boot/loader/entries
cat: /boot/loader/entries: Is a directory

You need to specify one of the files in this directory - any one will do.

OK so it’s Btrfs on LVM which is not a standard Fedora installation, but this is not invalid.

Syntax errors are detected in generated GRUB config file.

I guess we need to see:

# ls -l /boot/grub2/
# fpaste /boot/grub2/grub.cfg
# fpaste /boot/grub2/grub.cfg.new

Also found this. Is snapper installed and configured? I’m not familiar with how snapper or timeshift work or what they depend on. Switching back to BLSCFG probably broke the snapshotting regime…

This is the trouble with non-standard configurations. Very few people can help when there are problems. And if we don’t know this in advance there’s a chance any advice will make things worse.

I’m not sure if i have snapper installed. Would this be easier to solve if I just reinstall Fedora entirely and start from scratch? Or maybe I’ll just stay on the older update, which works.

Please don’t reinstall until you have collected more details of the issue. Reinstalls may be needed after an improper shutdown resulting in corrupt filesystems, but too often just bring you back to the original problem.

To check if snapper is installed, run “dnf info snapper”.

You can certainly backup your ~/ files to separate storage and reinstall. That is sometimes tedious but it does resolve any open questions about system state.