6 btrfs-select-super - overwrite superblock with a backup
10 *btrfs-select-super* -s number dev
14 *btrfs-select-super* destructively overwrites all copies of the superblock
15 with a specified copy. This helps with certain cases of damage, especially
16 when barriers were disabled during a power failure. You can find a valid
17 copy of the superblock with *btrfs check -s*.
19 The filesystem specified by `dev` must not be mounted.
23 -s|--super <superblock>::
24 use <superblock>th superblock copy, valid values are 0 up to 2 if the
25 respective superblock offset is within the filesystem