2014-04-02 08:29:18 +00:00
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btrfs-check(8)
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==============
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NAME
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----
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btrfs-check - check or repair a btrfs filesystem offline
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SYNOPSIS
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--------
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2014-05-19 15:49:35 +00:00
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*btrfs check* [options] <device>
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2014-04-02 08:29:18 +00:00
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DESCRIPTION
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-----------
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2014-05-19 15:49:35 +00:00
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*btrfs check* is used to check or repair a btrfs filesystem offline.
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2014-04-02 08:29:18 +00:00
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2014-05-19 15:49:35 +00:00
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NOTE: Since btrfs is under heavy development especially the *btrfs check*
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2014-04-15 07:04:51 +00:00
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command, it is *highly* recommended to read the following btrfs wiki before
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2014-05-19 15:49:35 +00:00
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executing *btrfs check* with '--repair' option: +
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2014-04-15 07:04:51 +00:00
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https://btrfs.wiki.kernel.org/index.php/Btrfsck
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2014-05-19 15:49:35 +00:00
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*btrfsck* is an alias of *btrfs check* command and is now deprecated.
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2014-04-16 16:33:44 +00:00
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2014-04-02 08:29:18 +00:00
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OPTIONS
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-------
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2014-05-19 15:08:56 +00:00
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-s|--super <superblock>::
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2014-04-02 08:29:18 +00:00
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use <superblock>th superblock copy.
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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.
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--init-extent-tree::
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create a new extent tree.
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2014-05-28 11:22:40 +00:00
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--check-data-csum::
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verify checkums of data blocks.
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2014-04-02 08:29:18 +00:00
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EXIT STATUS
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-----------
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2014-09-19 01:49:59 +00:00
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*btrfs check* returns a zero exit status if it succeeds. Non zero is
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2014-04-02 08:29:18 +00:00
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returned in case of failure.
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AVAILABILITY
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------------
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2014-05-19 16:04:26 +00:00
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*btrfs* is part of btrfs-progs.
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2014-04-02 08:29:18 +00:00
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Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for
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further details.
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SEE ALSO
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--------
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`mkfs.btrfs`(8),
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`btrfs-scrub`(8),
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`btrfs-rescue`(8)
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