btrfs-rescue − Recover a damaged btrfs filesystem
btrfs rescue <subcommand> <args>
btrfs rescue is used to try to recover a damaged btrfs filesystem.
chunk−recover [options] <device>
Recover the chunk tree by scanning the devices
Options
−y
assume an answer of yes to all questions.
−v
verbose mode.
−h
help.
Note
Since chunk−recover will scan the whole device,
it will be VERY slow especially executed on a large
device.
super−recover [options] <device>
Recover bad superblocks from good copies.
Options
−y
assume an answer of yes to all questions.
−v
verbose mode.
btrfs rescue returns a zero exit status if it succeeds. Non zero is returned in case of failure.
btrfs is part of btrfs−progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.
mkfs.btrfs(8), btrfs−scrub(8), btrfs−check(8)