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btrfs-select-super(8)
=====================
NAME
----
btrfs-select-super - overwrite superblock with a backup
SYNOPSIS
--------
*btrfs-select-super* -s number dev
DESCRIPTION
-----------
*btrfs-select-super* destructively overwrites all copies of the superblock
with a specified copy. This helps with certain cases of damage, especially
when barriers were disabled during a power failure. You can find a valid
copy of the superblock with *btrfs check -s*.
The filesystem specified by `dev` must not be mounted.
OPTIONS
-------
-s|--super <superblock>::
use <superblock>th superblock copy, valid values are 0 up to 2 if the
respective superblock offset is within the filesystem
SEE ALSO
--------
`btrfsck check`(8)
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