HP-UX Reference (11i v1 05/09) - 1M System Administration Commands A-M (vol 3)

f
fsck(1M) fsck(1M)
NAME
fsck - file system consistency check and interactive repair
SYNOPSIS
/usr/sbin/fsck
[-F FSType][-m
][-s][-V][special ...]
/usr/sbin/fsck
[-F FSType][-o
FSspecific-options][-s][-V][special ...]
DESCRIPTION
The
fsck command audits and interactively repairs inconsistent conditions for HP-UX file systems on
mass storage device files identified by special. If the file system is consistent, the number of files on that
file system and the number of used and free blocks are reported. If the file system is inconsistent,
fsck
provides a mechanism to fix these inconsistencies, depending on which form of the
fsck command is used.
special represents a special device (e.g.,
/dev/rdsk/c1d0s8
).
Options
fsck recognizes the following options:
-F FStype Specify the file system type on which to operate (see fstyp(1M) and fs_wrapper(5)). If
this option is not included on the command line, then the file system type is deter-
mined from the file
/etc/fstab by matching special with an entry in that file. If
there is no entry in /etc/fstab, then the file system type is determined from the
file /etc/default/fs
.
-m Perform a sanity check only. fsck will return 0 if the file system is suitable for
mounting. If the file system needs additional checking, the return code is 32. If the
file system is mounted, the return code is 33. Error codes larger than 33 indicate that
the file system is badly damaged.
-o FSspecific-options
Specify options specific to each file system type. FSspecific-options is a list of subop-
tions and/or keyword/attribute pairs intended for a file-system-specific version of the
command. See the file-system-specific manual entries for a description of the
specific_options supported, if any.
-s Safe performance mode. To improve performance, a system wide sync(2) will not be
issued. This feature is underlying file system dependent.
-V Echo the completed command line, but perform no other action. The command line is
generated by incorporating the user-specified options and other information derived
from /etc/fstab . This option allows the user to verify the command line.
RETURN VALUES
The following values are returned by the -m option to fsck:
0 Either no errors were detected or all errors were corrected.
32 The file system needs additional checking.
33 The file system is mounted.
Return values greater that 33 indicate that file system is badly corrupted. File system specific versions of
fsck will have their own additional return values (see fsck_cachefs(1M), fsck_hfs(1M), or fsck_vxfs(1M)).
WARNINGS
This command may not be supported for all file system types.
FILES
/etc/default/fs Specifies the default file system type
/etc/fstab Default list of file systems to check
SEE ALSO
fsck_cachefs(1M), fsck_hfs(1M), fsck_vxfs(1M), mkfs(1M), newfs(1M), fstab(4), fs_wrapper(5).
STANDARDS CONFORMANCE
fsck: SVID3
Section 1M−−258 Hewlett-Packard Company − 1 − HP-UX 11i Version 1: September 2005