forked from Mirrors/btrfs-progs
30 lines
1.0 KiB
Groff
30 lines
1.0 KiB
Groff
.TH BTRFSCK 8
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.SH NAME
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btrfsck \- check and repair of a Btrfs filesystem
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.SH SYNOPSIS
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.B btrfsck [\fIoptions\fP] \fI<device>\fP
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.SH DESCRIPTION
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\fBbtrfsck\fP is used to check and optionally repair of a Btrfs filesystem. Now, it can only be run on an unmounted FS. Considering it is not well-tested
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in real-life situations yet. if you have a broken Btrfs filesystem, btrfsck may not repair but cause aditional damages. \fI<device>\fP is the device file
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where the filesystem is stored.
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\fIOptions\fP
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.IP "\fB-s,--super \fI<superblock>\fP" 5
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specify which superblock copy that you want to use.
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.IP "\fB--repair\fP" 5
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try to repair the filesystem.
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.IP "\fB--init-csum-tree\fP" 5
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create a new CRC tree.
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.IP "\fB--init-extent-tree\fP" 5
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create a new extent tree.
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.SH EXIT CODE
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\fBbtrfsck\fR will return 0 exit code if no error happened.
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Other exit code means some problems happened.
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.br
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This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
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.SH SEE ALSO
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.BR mkfs.btrfs (8),
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.BR btrfs (8)
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