BTRFSCK(8)BTRFSCK(8)NAMEbtrfsck - check and repair of a Btrfs filesystem
SYNOPSISbtrfsck [options] <device>
DESCRIPTIONbtrfsck 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 filesys‐
tem, btrfsck may not repair but cause aditional damages. <device> is
the device file where the filesystem is stored.
specify which superblock copy that you want to use.
try to repair the filesystem.
create a new CRC tree.
create a new extent tree.
EXIT CODEbtrfsck will return 0 exit code if no error happened. Other exit code
means some problems happened.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSOmkfs.btrfs(8), btrfs(8)BTRFSCK(8)