forked from Mirrors/btrfs-progs
59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
![]() |
btrfs-check(8)
|
||
|
==============
|
||
|
|
||
|
NAME
|
||
|
----
|
||
![]() |
btrfs-check - check or repair an unmounted btrfs filesystem
|
||
![]() |
|
||
|
SYNOPSIS
|
||
|
--------
|
||
![]() |
*btrfs check* [options] <device>
|
||
![]() |
|
||
|
DESCRIPTION
|
||
|
-----------
|
||
![]() |
*btrfs check* is used to check or repair an unmounted btrfs filesystem.
|
||
![]() |
|
||
![]() |
NOTE: Since btrfs is under development, the *btrfs check* capabilities are
|
||
|
continuously enhanced. It's 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, valid values are 0 up to 2 if the
|
||
|
respective superblock offset is within the fileystem
|
||
![]() |
--repair::
|
||
![]() |
try to repair the filesystem
|
||
![]() |
--init-csum-tree::
|
||
![]() |
create a new CRC tree and recalculate all checksums
|
||
![]() |
--init-extent-tree::
|
||
![]() |
create a new extent tree
|
||
![]() |
--check-data-csum::
|
||
![]() |
verify checkums of data blocks
|
||
|
--qgroup-report::
|
||
|
verify qgroup accounting and compare against filesystem accounting
|
||
![]() |
--subvol-extents <subvolid>::
|
||
![]() |
show extent state for a subvolume
|
||
|
--tree-root <bytenr>::
|
||
|
use the given bytenr for the tree root
|
||
![]() |
|
||
|
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)
|