A warning about the new Disk Utility

Discussion in 'OS X El Capitan (10.11)' started by aevan, Jun 21, 2015.

  1. aevan macrumors 68000

    aevan

    Joined:
    Feb 5, 2015
    Location:
    Serbia
    #1
    Now, I don't know if this is just my specific case, even if the Disk Utility was to blame, but I'd like to share what happened - because someone may find it useful.

    I already mentioned what happened in this thread. In short, I tried to create a Bootcamp partition with the Bootcamp assistant, it failed and told me to use Disk Utility to erase the bootcamp partition and try again. I tried to do this, but couldn't - I was left with a partition on the HDD part of my Fusion Drive that I just couldn't merge with the rest of the HDD. It would just give the "Operation Failed" message.

    Not knowing what else to do, I created an Yosemite Install USB and booted from it. I didn't revert to Yosemite, but used the Disk Utility there instead (which is the old one). I easily merged the two partitions without loosing any data. Rebooted back to El Capitan DP1 and everything is fine now.

    So, a warning - I don't know if anyone made a bootcamp partition from El Capitan, but the Disk Utility is possibly broken when it comes to repartitioning corevolume drives.
     
  2. J.gerbes macrumors 6502

    Joined:
    Jun 11, 2012
    #2
    I had the same problem.

    Simple fix: boot into single user mode, type "/sbin/fsck -fy" (without quotes). Reboot, and then retry in Disk Utility.

    http://osxdaily.com/2012/03/05/fix-partition-failed-error-mac/
     
  3. aevan thread starter macrumors 68000

    aevan

    Joined:
    Feb 5, 2015
    Location:
    Serbia
  4. thirdeyeopen666 macrumors 6502

    thirdeyeopen666

    Joined:
    Sep 16, 2007
    #4
    How did you get to the step where it partitions the disk in Boot Camp Assistant? I can't even get it to recognize any Windows install disc at all.
     
  5. J.gerbes macrumors 6502

    Joined:
    Jun 11, 2012
    #5
    No problem :)
     
  6. jonblatho macrumors 6502

    jonblatho

    Joined:
    Jan 20, 2014
    Location:
    Oklahoma/Missouri
    #6
    This (among some other steps) fixed my iMac's partitions up as well. Thanks a lot. :D
     
  7. Aztek macrumors newbie

    Aztek

    Joined:
    Dec 21, 2015
    #7

    Yes I'm have the same problems at the mo, bloody annoying..!
     
  8. Riwam macrumors 6502a

    Riwam

    Joined:
    Jan 7, 2014
    Location:
    Basel, Switzerland
    #8
    ******
    Just something to add now to that rather old post.
    In my case as well the BootCamp of OSX 10.11 failed to install Windows.
    I had to reinstall temporarily Yosemite and use its working BootCamp until Windows was there.
    Then I cloned El Capitan back after erasing Yosemite.
    I am personally convinced that the "new" BootCamp which is supposed to do it without an external install drive is a total failure. :eek:
    Ed
     

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