

If Verify Disk finds errors on your startup disk, you must repair the disk as noted in point 1.
What is disk utility on man for mac os x#
If you are running Mac OS X 10.4.3 or later and your startup disk is in Mac OS X Extended (Journaled) format the default format for Mac OS X 10.3 Panther® and later you can use Verify Disk to verify the directory of your startup disk while your Mac is started up from such.
What is disk utility on man install#
See Steps 1-2 of the Procedure specified in our "Resolving Disk, Permission, and Cache Corruption" FAQ for step-by-step instructions on repairing your startup disk using your Mac OS X Install disc. To repair your startup disk, you must startup from your Mac OS X Install disc or another drive on which Mac OS X is installed. You cannot use Repair Disk to repair your Mac OS X startup disk for example, Macintosh HD while your Mac is started up (booted) from such.Keep in mind the following key points about Repair Disk: All hard disks have one or more volumes or partitions. A volume, also known as a partition, is section of a physical hard disk which, from the perspective of the operating system, works like a separate disk. The directory is analogous to a combined address book and road map to where data is stored on a disk or volume. Repair Disk verifies and, if problems are found, corrects issues with the directory on a disk or volume.

