Manpage/btrfs-check

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=btrfs-check(8) Manual Page=
 
 
{{GeneratedManpage
 
{{GeneratedManpage
 
|name=btrfs-check}}
 
|name=btrfs-check}}
 
==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:<br />https://btrfs.wiki.kernel.org/index.php/Btrfsck
 
 
'''btrfsck''' is an alias of '''btrfs check''' command and is now deprecated.
 
 
==OPTIONS==
 
 
; -s|--super &lt;superblock&gt;
 
: use &lt;superblock&gt;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
 
; -p|--progress
 
: indicate progress at various checking phases
 
; --qgroup-report
 
: verify qgroup accounting and compare against filesystem accounting
 
; --subvol-extents &lt;subvolid&gt;
 
: show extent state for a subvolume
 
; --tree-root &lt;bytenr&gt;
 
: 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==
 
 
[[Manpage/mkfs.btrfs|mkfs.btrfs(8)]], [[Manpage/btrfs-scrub|btrfs-scrub(8)]], [[Manpage/btrfs-rescue|btrfs-rescue(8)]]
 
 
[[Category:Manpage]]
 

Latest revision as of 12:28, 12 January 2022

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