BTRFSCK(8) System Manager's Manual BTRFSCK(8)
NAME
btrfsck - check and repair of a Btrfs filesystem
SYNOPSIS
btrfsck [options] <device>
DESCRIPTION
btrfsck is used to check and optionally repair of a Btrfs filesystem. Now, it can only be run on an unmounted FS. Considering it is not
well-tested in real-life situations yet. if you have a broken Btrfs filesystem, btrfsck may not repair but cause aditional damages.
<device> is the device file where the filesystem is stored.
Options
-s,--super <superblock>
specify which superblock copy that you want to use.
--repair
try to repair the filesystem.
--init-csum-tree
create a new CRC tree.
--init-extent-tree
create a new extent tree.
EXIT CODE
btrfsck will return 0 exit code if no error happened. Other exit code means some problems happened.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
mkfs.btrfs(8), btrfs(8)
BTRFSCK(8)
