Things You Need:
- Mac OS X 10.4 or later
- Installation disk (same version)
Hard Drive repair process:
- Start your Mac & insert the disk, and upon hearing the boot sound from the system, press the 'C' key from the keyboard. Hold the 'C' key until the Grey Apple icon appears on the monitor. The computer may take more than required time to boot from the disk, but this is not a matter of concern and take it as a normal procedure. The next step of the process will prompt to choose your desired language.
- In 10.4 and later Macs, the Disk Utility can be found from the Utilities Menu > Disk Utility.
- The disk utility launches and now you can select the hard drive from the left menu and further click the 'Repair Disk' option from the 'First Aid' tab. A scan process of the chosen drive begins which might stretch a bit but end of the scan displays the negative or positive results.
- If an error is reported, the disk utility will prompt you otherwise displays the message 'The Volume (name) appears to be OK'.
There are two instances that are to be taken care of:
- Double check if the disk utility is displaying your drive on the left menu. A drive missing under the Disk Utility menu could be a serious issue and beyond the repair of the disk utility.
- At times the DU is not able to report the error in the first scan, therefore it is recommended to rescan the disk using the option 'Repair Disk' and if errors are reported after the second scan , a more advance tool than DU is required to fix the errors on the drive.
Due to a third party software, the permissions on Mac OS X and Apple based software may temporarily get changed or even reset. The 'Repair Disk Permission' options from the disk utility crawls in to set the permissions back.
Resource: I am a regular contributor to the http://data-recovery...es.blogspot.com