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Repair Disk *without* a DVD/CD. How?

16204 Views 15 Replies Latest reply: Feb 25, 2013 4:15 AM by flamebliss RSS
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Cyberpundit Level 1 Level 1 (5 points)
Currently Being Moderated
Sep 9, 2011 8:43 PM

I want to Repair Disk using Disk Utilities, but this option is disabled in OSX Lion.

 

So I read up a thread here that suggests that I can Repair Disk by rebooting and pressing the ALT key, which is supposed to show me options. However, I only see the "Mac" startup option, nothing for Disk Recovery or whatever.

 

What am I missing? How do I repair disk? I don't have the original "Recovery CD" (nor do I want to have it) and really really want this to be possible WITHOUT a CD or DVD. I understand repairing a disk is indeed possible? 

 

This is related to many hanging situations after my upgrade to OSX Lion. And no, I do not wish to install clean OSX Lion. An upgrade should be an upgrade, especially from Apple.

 

Thanks for any pointers.     

  • Joe Gramm Level 5 Level 5 (6,315 points)
    Currently Being Moderated
    Sep 9, 2011 8:50 PM (in response to Cyberpundit)

    Select the top level of your HD and you should be able to Repair Disk

    Screen Shot 2011-09-09 at 11.47.25 PM.png

  • Joe Gramm Level 5 Level 5 (6,315 points)
    Currently Being Moderated
    Sep 9, 2011 9:07 PM (in response to Cyberpundit)

    Did you Verify or Repair. If you Repaired then that's not good if Disk Repair could not repair. Since you don't have the Hardware Disk that came with the machine, you may have to purchase a repair utility like DiskWarrior or something similar.

     

    You could try booting into the Lion Recovery HD and Repair Disk from there.

     

    To boot into Lion Recovery HD:

    Restart your Mac and hold down the Command key and the R key (Command-R), and keep holding them until the Apple icon appears, indicating that your Mac is starting up. After the Recovery HD is finished starting up, you should see a desktop with a Mac OS X menu bar and a "Mac OS X Utilities" application window. Note: If you see a login window or your own desktop and icons, it is possible that you didn't hold Command-R early enough. Restart and try again.

  • Michael Allbritton Level 6 Level 6 (16,145 points)
    Currently Being Moderated
    Sep 9, 2011 9:51 PM (in response to Cyberpundit)

    It is not possible to use the Repair Disk fuction in Disk Utility when you are booted into the OS off the boot drive. That's why the repair fails.

     

    Booting up while holding down CMD+R should get you to the Recovery partition and allow you to use DU to run repair disk.

  • Tony T1 Level 6 Level 6 (8,125 points)
    Currently Being Moderated
    Sep 11, 2011 7:44 AM (in response to Cyberpundit)

    Boot into Recovery again and Repair both the Disk and the Volume:

     

         Untitled.png

  • Tony T1 Level 6 Level 6 (8,125 points)
    Currently Being Moderated
    Sep 11, 2011 8:06 AM (in response to Cyberpundit)

    The disk (Mac) did not show me the Repair button. It was greyed out.

     

    Is something wrong?

     

    While booted into Recovery? (Hold ⌘R on boot).

     

    Cyberpundit wrote:

     

    So I read up a thread here that suggests that I can Repair Disk by rebooting and pressing the ALT key, which is supposed to show me options. However, I only see the "Mac" startup option, nothing for Disk Recovery or whatever.

     

    Do you have FileVault enabled?

    If not, you should also see the Recovery Disk when holding the ALT key on boot.

  • Tony T1 Level 6 Level 6 (8,125 points)
    Currently Being Moderated
    Sep 11, 2011 8:15 AM (in response to Cyberpundit)

    Do you have a blank USB thumb drive?

    If so, try creating a Recovery Disk on the USB with: Lion Recovery Disk Assistant and then boot off of the USB and select Disk Utility and then Repair (This will only work if you don't use FileVault.  If you use FileVault, you can only boot into recovery with ⌘R)

  • Linc Davis Level 10 Level 10 (107,650 points)
    Currently Being Moderated
    Sep 11, 2011 8:30 AM (in response to Cyberpundit)

    Live verification of the boot volume can be unreliable:

     

    Mac OS X: Disk Utility incorrectly reports disk errors on startup volume (disk)

     

    If you get different results, you should believe the result you get while booted from the recovery partition.

     

    If you ever do get real directory damage that Disk Utility can't fix, do not waste money on third-party disk utilities such as Disk Warrior. A drive that throws that kind of error is untrustworthy and should be replaced. If you choose not to replace it, erase the damaged volume and restore from your most recent backup. Doing that is faster, safer, and cheaper than using Disk Warrior. Disk Warrior is a recovery tool that's only useful if you don't have adequate backups. Spend your money on backups, not utilities.

  • Joe Gramm Level 5 Level 5 (6,315 points)
    Currently Being Moderated
    Sep 11, 2011 12:35 PM (in response to Linc Davis)

    Linc Davis,

      Thanks for the info about DiskWarrior. I haven't used a Utility like that since probably TechTools 2 or 3. So I'll be sure not to mention the name again.

  • Tony T1 Level 6 Level 6 (8,125 points)
    Currently Being Moderated
    Sep 11, 2011 1:28 PM (in response to Joe Gramm)

    FWIW, Disk Warrior repaired a directory of mine that Disk Utility cound not.

  • Linc Davis Level 10 Level 10 (107,650 points)
    Currently Being Moderated
    Sep 11, 2011 3:30 PM (in response to Tony T1)

    And how was that better than erasing and restoring from backup, which, unlike DW, always works, and costs $100 less?

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