Manpage/btrfs-check

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{{GeneratedManpage
=btrfs-check(8) Manual Page=
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|name=btrfs-check}}
{{GeneratedManpage}}
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==NAME==
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btrfs-check - check or repair an unmounted btrfs filesystem
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==SYNOPSIS==
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'''btrfs check''' [options] <device>
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==DESCRIPTION==
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'''btrfs check''' is used to check or repair an unmounted btrfs filesystem.
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'''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
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'''btrfsck''' is an alias of '''btrfs check''' command and is now deprecated.
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==OPTIONS==
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; -s|--super &lt;superblock&gt;
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: use &lt;superblock&gt;th superblock copy, valid values are 0 up to 2 if the respective superblock offset is within the fileystem
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; --repair
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: try to repair the filesystem
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; --init-csum-tree
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: create a new CRC tree and recalculate all checksums
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; --init-extent-tree
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: create a new extent tree
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; --check-data-csum
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: verify checkums of data blocks
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; --qgroup-report
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: verify qgroup accounting and compare against filesystem accounting
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; --subvol-extents &lt;subvolid&gt;
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: show extent state for a subvolume
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; --tree-root &lt;bytenr&gt;
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: use the given bytenr for the tree root
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==EXIT STATUS==
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'''btrfs check''' returns a zero exit status if it succeeds. Non zero is returned in case of failure.
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==AVAILABILITY==
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'''btrfs''' is part of btrfs-progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.
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==SEE ALSO==
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[[Manpage/mkfs.btrfs|mkfs.btrfs(8)]], [[Manpage/btrfs-scrub|btrfs-scrub(8)]], [[Manpage/btrfs-rescue|btrfs-rescue(8)]]
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[[Category:Manpage]]
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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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