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  1. #1

    Member Since
    Oct 19, 2008
    IMac G5, 2.1 GHz, 2.5 GB DDR2 SDRAM, 250 GB hard drive, OS X 10.4.11
    Question Unable to repair hard disk! Help!
    I have been having trouble with a slow computer so I did a repair Permissions and then I did a Verify Disk and it showed disk errors and said that the Volume Needed Repair. This was followed by: "ERROR: THE UNDERLYING TASK FAILED ON EXIT". The Repair Disk button does not go hot and I am unable to repair my disk. I have tried a few strategies; turned off computer and modem then restarted and only opened disk utility and performed Verify Disk with the same error message. In my Volume display it shows my hard drive then Macintosh HD and I have verified both separately with the same result. Any ideas where to go from here? Thanks.

  2. #2

    hughvane's Avatar
    Member Since
    May 18, 2008
    Banks Peninsula, New Zealand
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    See your 'super slow browser' thread.
    Please post your Mac (or other) specs and MacOS version in your post, your profile or your signature. It helps us to help you better.

    I'm leaving now to go and find myself. If I should return before I get back, please ask me to wait.

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac i5 2.7GHz, 16GB memory, OS 10.11
    In short to repair the drive you need to boot from your system install DVD, and go into Utilities > Disk utility > Repair Disk from there. It is not possible to repair a drive you are booted from.

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