Mac OS X Panther in a Nutshell, 2nd Edition

Name

fsck_hfs

Synopsis

fsck_hfs -u
fsck_hfs [-d] [-f] [-r] { -q | -p | [-n | -y] } device...

Performs consistency checks of HFS and HFS+ volumes, and attempts to fix any inconsistencies found.

Options

-d

Enable debugging output.

-f

Force check even if the volume is marked as clean.

-n

Automatically answer “no” whenever fsck_hfs asks to resolve an inconsistency.

-p

Run in preening mode, in which only purely innocuous inconsistencies are resolved.

-q

Check the filesystem but don’t resolve any inconsistencies. Return filesystem status of clean, dirty, or failure to standard error.

-r

Cause a rebuild of the volume’s catalog btree to occur.

-u

Print a usage statement to standard output.

-y

Automatically answer “yes” whenever fsck_hfs asks to resolve an inconsistency.

device

The volume’s device filename, e.g., /dev/disk1s2.