----- On May 27, 2021, at 9:37 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote:

----- On May 26, 2021, at 5:17 PM, Remi Gauvin remi@georgianit.com wrote:

Hi,

i followed your guide and tried a reboot remotely.
PC stuck in BIOS, someone in the office pressed F2, and system booted
completely.
But unfortunately in the bad system and without X:

root@pc65472:~# mount|grep btrfs
/dev/mapper/vg1-lv_root on / type btrfs
(rw,relatime,ssd,space_cache,subvolid=257,subvol=/@_bad)
/dev/mapper/vg1-lv_root on /home type btrfs
(rw,relatime,ssd,space_cache,subvolid=258,subvol=/@home)
/dev/sdb1 on /data type btrfs
(rw,relatime,space_cache,subvolid=258,subvol=/@data)
/dev/sdc1 on /local type btrfs (rw,relatime,space_cache,subvolid=5,subvol=/)
/dev/mapper/vg1-lv_root on /var/lib/docker/btrfs type btrfs
(rw,relatime,ssd,space_cache,subvolid=257,subvol=/@_bad/var/lib/docker/btrfs)

Any idea ?

I will try tomorrow again, then i'm in front of the PC.

Bernd

journalctl -xb:

 ...
Mai 27 09:51:38 pc65472 kernel: BTRFS error (device dm-0): could not find root 8
Mai 27 09:51:38 pc65472 kernel: BTRFS error (device dm-0): could not find root 8
 ...

Bernd