If you see a message reporting that a disk is "damaged" or unreadable, data on your disk may have become corrupted. Data can be corrupted if the computer is not shut down properly, the computer freezes or crashes, or storage or peripheral devices are not properly connected.
To test and repair a disk:
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Open Disk First Aid (inside the Utilities folder on your hard disk). |
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When Disk First Aid opens, select the disk you want to repair and click Repair. |
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Note: Disk First Aid only works with DVD-RAM discs that have been formatted in Mac OS Standard or Mac OS Extended format. To find out the format of a disc, select the disc and choose Get Info from the Finder's File menu. |
If Disk First Aid cannot correct the problem:
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Try running Disk First Aid a second or third time. Sometimes repeating the process corrects the problem. |
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Use Drive Setup (located inside the Utilities folder) to update the disk driver. |
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To update the disk driver, use the Update Driver command in the Functions menu. |
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Use another disk repair or recovery program, such as Disk Doctor from Norton Utilities. Sometimes another program can help you recover data on a corrupted disk. |
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If you can't repair the startup disk, the System file or other resources may be damaged. Perform a clean installation of system software. |
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Start up your computer from the system software CD and use Drive Setup (located inside the Utilities folder) to test your hard disk for physical damage. |
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To test the disk, use the Test Disk command in the Functions menu. |
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If the test reveals a problem, the hard disk is probably damaged. Consult an Apple-authorized service provider for assistance. (If you have a hard disk from another manufacturer, consult that manufacturer for assistance.) |
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If none of the previous solutions work, reinitialize the hard disk. |
