path: root/Documentation/btrfs-check.txt
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authorQu Wenruo <>2014-04-02 16:29:18 +0800
committerDavid Sterba <>2014-04-22 14:15:20 +0200
commite3cd48c751e97b54fcd732c15861e6316e661657 (patch)
treed3c05140b500f466ebbc5ec9eb4f9c7839ac5774 /Documentation/btrfs-check.txt
parent8cf75a9a26049df5f401ea29a6021f5ba9410558 (diff)
btrfs-progs: Convert man page for btrfs-check.
Convert man page for btrfs-check. Signed-off-by: Qu Wenruo <> Signed-off-by: David Sterba <>
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+btrfs-check - check or repair a btrfs filesystem offline
+'btrfs check' [options] <device>
+'btrfs check' is used to check or repair a btrfs filesystem offline.
+-s|--support <superblock>::
+use <superblock>th superblock copy.
+try to repair the filesystem.
+create a new CRC tree.
+create a new extent tree.
+'btrfs check' returns a zero exist status if it succeeds. Non zero is
+returned in case of failure.
+'btrfs' is part of btrfs-progs. Btrfs filesystem is currently under heavy
+and not suitable for any uses other than benchmarking and review.
+Please refer to the btrfs wiki for
+further details.