HP-UX Reference (11i v3 07/02) - 1M System Administration Commands A-M (vol 3)

fsck_hfs(1M) fsck_hfs(1M)

After fsck has checked and ﬁxed the ﬁle system, it stores the correct

fs_clean ﬂag in the superblock if

it is not already there. For a nonroot ﬁle system,

FS_CLEAN is stored there. For the root ﬁle system,

which is mounted at the time of the

fsck, no changes are required to the superblock if no problems were

found and

FS_OK was already set.

Checking the raw device is almost always faster.

RETURN VALUE

fsck returns the following values:

0 Either no errors were detected or all errors were corrected.

1 A syntax error or other operational error occurred when invoked with the -V option.

4 Root ﬁle system errors were corrected. The system must be rebooted.

8 Some uncorrected errors exist on one or more of the ﬁle systems checked, there was a syntax

error, or some other operational error occurred.

12 A signal was caught during processing.

31 The open of the device ﬁle failed.

32 The ﬁle system is unmounted and needs additional checking.

33 The ﬁle system is mounted.

34 The ﬁle system is damaged.

WARNINGS

fsck should not be run on mounted ﬁle systems or on the root device. If you do run on mounted ﬁle sys-

tems, be sure the system is in single-user state (see shutdown(1M)).

The special case of the -c option, -c 0, will disable all internal caches, which will reduce memory usage

but may impact performance.

The -F option, from prior releases, has been replaced by the -f option.

AUTHOR

fsck was developed by HP, AT&T, the University of California, Berkeley.

FILES

/etc/fstab Default list of ﬁle systems to check.

/var/adm/sbtab List of locations of the superblocks for ﬁle systems. The

mkfs command appends

entries to this ﬁle.