fsck.ocfs2 - Check an OCFS2 file system.

fsck.ocfs2 [ -fFGnuvVy ] [ -b superblock block ] [ -B block size ] device

fsck.ocfs2 is used to check an OCFS2 file system.

device is the file where the file system is stored (e.g. /dev/sda1). It will almost always be a device file but a regular file will work as well.

-b superblock block

Normally, fsck.ocfs2 will read the superblock from the first block of the device. This option specifies an alternate block that the superblock should be read from.

-b blocksize

The block size, specified in bytes, can range from 512 to 4096. A value of 0, the default, is used to indicate that the blocksize should be automatically detected.

-f

Force checking even if the file system is clean.

-F

Usually fsck.ocfs2 will check with cluster services and the DLM to make sure that no one else in the cluster is actively using the device before proceeding. -F skips this check and should only be used when it can be guaranteed that there can be no other users of the device while fsck.ocfs2 is running.

-G

Usually fsck.ocfs2 will silently assume inodes whose generation number does not match the generation number of the super block are unused inodes. This option causes fsck.ocfs2 to ask the user if these inodes should in fact be marked unused.

-n

Give the 'no' answer to all questions that fsck will ask. This guarantees that the file system will not be modified and the device will be opened read-only. The output of fsck.ocfs2 with this option can be redirected to produce a record of a file system's faults.

-y

Give the 'yes' answer to all questions that fsck will ask. This will repair all faults that fsck.ocfs2 finds but will not give the operator a chance to intervene if fsck.ocfs2 decides that it wants to drastically repair the file system.

-v

This option causes fsck.ocfs2 to produce a very large amount of debugging output.

-V

Print version information and exit.

The exit code returned by fsck.ocfs2 is the sum of the following conditions:

0 - No errors

1 - File system errors corrected

2 - File system errors corrected, system should

be rebooted

4 - File system errors left uncorrected

8 - Operational error

16 - Usage or syntax error

32 - E2fsck canceled by user request

128 - Shared library error

mkfs.ocfs2(8) debugfs.ocfs2(8) tunefs.ocfs2(8) mounted.ocfs2(8) ocfs2console(8) ocfs2cdsl(8)

Oracle Corporation. This man page entry derives some text, especially the exit code summary, from e2fsck(8) by Theodore Ts’o <tytso@mit.edu>.

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