1fsck.ocfs2(8) OCFS2 Manual Pages fsck.ocfs2(8)
2
6 fsck.ocfs2 - Check an OCFS2 file system.
7
9 fsck.ocfs2 [ -fFGnuvVy ] [ -b superblock block ] [ -B block size ]
10 device
11
13 fsck.ocfs2 is used to check an OCFS2 file system.
14 device is the file where the file system is stored (e.g. /dev/sda1).
16 It will almost always be a device file but a regular file will work as
17 well.
18
21 -b superblock block
22 Normally, fsck.ocfs2 will read the superblock from the first
23 block of the device. This option specifies an alternate block
24 that the superblock should be read from. (Use -r instead of this
25 option.)
26 -B blocksize
29 The block size, specified in bytes, can range from 512 to 4096.
30 A value of 0, the default, is used to indicate that the block‐
31 size should be automatically detected.
32 -f Force checking even if the file system is clean.
35 -F By default fsck.ocfs2 will check with the cluster services to
38 ensure that the volume is not in-use (mounted) on any node in
39 the cluster before proceeding. -F skips this check and should
40 only be used when it can be guaranteed that the volume is not
41 mounted on any node in the cluster. WARNING: If the cluster
42 check is disabled and the volume is mounted on one or more
43 nodes, file system corruption is very likely. If unsure, do not
44 use this option.
45 -G Usually fsck.ocfs2 will silently assume inodes whose generation
48 number does not match the generation number of the super block
49 are unused inodes. This option causes fsck.ocfs2 to ask the
50 user if these inodes should in fact be marked unused.
51 -n Give the 'no' answer to all questions that fsck will ask. This
54 guarantees that the file system will not be modified and the
55 device will be opened read-only. The output of fsck.ocfs2 with
56 this option can be redirected to produce a record of a file sys‐
57 tem's faults.
58 -r backup-number
61 mkfs.ocfs2 makes upto 6 backup copies of the superblock at off‐
62 sets 1G, 4G, 16G, 64G, 256G and 1T depending on the size of the
63 volume. Use this option to specify the backup, 1 thru 6, to use
64 to recover the superblock.
65 -y Give the 'yes' answer to all questions that fsck will ask. This
68 will repair all faults that fsck.ocfs2 finds but will not give
69 the operator a chance to intervene if fsck.ocfs2 decides that it
70 wants to drastically repair the file system.
71 -v This option causes fsck.ocfs2 to produce a very large amount of
74 debugging output.
75 -V Print version information and exit.
78
81 The exit code returned by fsck.ocfs2 is the sum of the following condi‐
82 tions:
83 0 - No errors
84 1 - File system errors corrected
85 2 - File system errors corrected, system should
86 be rebooted
87 4 - File system errors left uncorrected
88 8 - Operational error
89 16 - Usage or syntax error
90 32 - fsck.ocfs2 canceled by user request
91 128 - Shared library error
92
95 mkfs.ocfs2(8) debugfs.ocfs2(8) tunefs.ocfs2(8) mounted.ocfs2(8)
96 ocfs2console(8) o2cb(7)
97
101 Oracle Corporation. This man page entry derives some text, especially
102 the exit code summary, from e2fsck(8) by Theodore Y. Ts'o
103 <tytso@mit.edu>.
104
107 Copyright © 2004, 2009 Oracle. All rights reserved.
108Version 1.4.3 April 2009 fsck.ocfs2(8)