Arch Linux

atmouse

Member

Registered: 2013-06-21

Posts: 6

Btrfs is broken again

After upgrade btrfsprog tool today then reboot, Arch boot failed because btrfs unable mount.
btrfsck not work.

```
root@archiso ~ # cryptsetup open /dev/sdb1 cryptroot
Enter passphrase for /dev/sdb1:
cryptsetup open /dev/sdb1 cryptroot 7.87s user 0.27s system 103% cpu
root@archiso ~ # mount /dev/mapper/cryptroot /mnt
[   83.340103] BTRFS error (device dm-0): superblock checksum mismatch...
[   83.364083] BTRFS error (device dm-0): open_ctree failed
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/mapper/..
32 root@archiso ~ #
```

fortunately I m use btrfs's subsystem snapshot to backup entire Arch System every day

Edit: `btrfs rescue super-recover -v /dev/mapper/cryptroot` recovered

Forget that, it cause by my broken SSD drive

Last edited by atmouse (2020-06-04 07:00:13)