\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
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
where the filesystem is stored.
\fIOptions\fP
.IP"\fB-s,--super \fI<superblock>\fP"5
specify which superblock copy that you want to use.
.IP"\fB--repair\fP"5
try to repair the filesystem.
.IP"\fB--init-csum-tree\fP"5
create a new CRC tree.
.IP"\fB--init-extent-tree\fP"5
create a new extent tree.
.SHEXITCODE
\fBbtrfsck\fR will return 0 exit code if no error happened.
Other exit code means some problems happened.
.br
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
