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=btrfs-check(8) Manual Page=
btrfs-check - check or repair an unmounted btrfs filesystem
'''btrfs check''' [options] <device>
'''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 />
'''btrfsck''' is an alias of '''btrfs check''' command and is now deprecated.
; -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
; --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
'''btrfs check''' 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 for further details.
[[Manpage/mkfs.btrfs|mkfs.btrfs(8)]], [[Manpage/btrfs-scrub|btrfs-scrub(8)]], [[Manpage/btrfs-rescue|btrfs-rescue(8)]]

Latest revision as of 12:28, 12 January 2022

Note: manual pages are located at read-the-docs site, please update your links.

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