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BTRFS-CHECK(8) Btrfs Manual BTRFS-CHECK(8)

NAME

btrfs-check - check or repair a btrfs filesystem offline

SYNOPSIS

btrfs check [options] <device>

DESCRIPTION

btrfs check is used to check or repair a btrfs filesystem offline.
 
Note
 
 
Since btrfs is under heavy development especially the btrfs check command, it is highly recommended to read the following btrfs wiki before executing btrfs check with --repair option: https://btrfs.wiki.kernel.org/index.php/Btrfsck
btrfsck is an alias of btrfs check command and is now deprecated.

OPTIONS

-s|--super <superblock>
use '<superblock>'th superblock copy.
--repair
try to repair the filesystem.
--init-csum-tree
create a new CRC tree.
--init-extent-tree
create a new extent tree.
--check-data-csum
verify checkums of data blocks.

EXIT STATUS

btrfs check returns a zero exit status if it succeeds. Non zero is returned in case of failure.

AVAILABILITY

btrfs is part of btrfs-progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.

SEE ALSO

mkfs.btrfs(8), btrfs-scrub(8), btrfs-rescue(8)
11/22/2014 Btrfs v3.17