Edit: managed to boot by reinstalling grub, reinstalling the kernel (latest) with Artix’ own basestrap script and then updating grub from a live USB. System saved. Now it won’t accept a new IP from my dhcp server but that’s tomorrow’s problem. Thank you all for your quick respones! 🥰
Artix Linux
Thinkpad T480
Symptoms appeared after a system upgrade
Error log:
[ 0.801115] VFS: Cannot open root device "UUID=ed827e9a-47e4-490c-8a9a-0f0145925e0b" or unknown-block(0,0): error -6
[ 0.801117] Please append a correct "root=" boot option; here are the available partitions:
[ 0.801119] List of all bdev filesystems:
[ 0.801119] ext3
[ 0.801120] ext2
[ 0.801121] ext4
[ 0.801122] fuseblk
[ 0.801122] btrfs
[ 0.801123]
[ 0.801124] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Should I adjust something in fstab from a live USB or can I point to the root partition from GRUB’s CLI?
Booting a live USB and reinstalling GRUB as follows has saved my butt in the past. Obviously replace the /dev/sdXY paths with your own. Further adjustments might be needed depending on your system.
# mount root partition: sudo mount /dev/sdXY2 /mnt # mount boot partition (if there is any) sudo mount /dev/sdXY3 /mnt/boot # mount efi partition (if there is any) sudo mount /dev/sdXY1 /mnt/boot/efi # mount other partitions: for dir in /dev /dev/pts /proc /sys /sys/firmware/efi/efivars /run; do sudo mount --bind $dir /mnt$dir; done # chroot into mounted system: sudo chroot /mnt /bin/bash -i # reinstall grub: grub-install # rebuild grub.cfg: update-grub # rebuild initramfs (not sure if necessary): update-initramfs -u # sync, exit chroot, reboot: sync exit sudo rebootThis is also the basic starting point for fixing many boot problems; boot from live USB, mount system partitions, chroot into temporary environment. Most problems are fairly easy to fix if you can just get to a command line.