Arch Linux

dahikino

Member

Registered: 2020-10-11

Posts: 9

Timeshift restore, system not bootable anymore

Hello all,  i did try to solve my problem of language lost in xfce by restoring a previous snapshot with timeshift via BTRFS.
My system is using luks on LVM+BTRFS with SYSTEMD-BOOT, not grub.

The result after to proceed to the change in TimeShift is that the system can’t boot anymore.

I don’t know how to read the log jounalctl knowing that i have access to the partitions via a older system installed in another disk.

I don’t know neither how to come back to the situation before to use the restore of TimeShift. i proceed to the restore at 2022-02-16_09-31-59 , trying to come back to previous snaptshot of 2022-02-15_10-00-01 .

the right btrfs subvolume ID use for the root (/@) was 256 like in the fstab before to proceed to the timeshift restore.

we see that in my fstab my root is using normally the btrfs subvolume ID 256 but after the timeshift restore, we see in the subvolume list, that the subvolume id 256 took the path  "timeshift-btrfs/snapshots/2022-02-16_09-31-59/@", before to restore it was @  !
and the subvolume ID 943 is now with the path @, looking at the parent uuid, it is a snaptshot of "timeshift-btrfs/snapshots/2022-02-15_10-00-01/@"

both subvolume id 256 and 943 are read only  now!

I suppose i would have to use the snaptshot of 2022-02-16_09-31-59 and pointed it with the volume ID 256, to be conform at the correct situation before to have done my mistake.

how can i do with btrfs command ?

Thanks

Last edited by dahikino (2022-02-16 21:06:57)