OSX Macbook Pro Partition Issue

Discussion in 'macOS' started by crad159, Feb 28, 2014.

  1. crad159, Feb 28, 2014
    Last edited: Feb 28, 2014

    crad159 macrumors newbie

    Aug 11, 2011
    Hi all.

    I am running OSX 10.7.5 on a Macbook Pro from 2011. I have just uninstalled and removed my Windows bootcamp partition from my 500gb HDD, and I wanted to re-partition it all back to the OSX Mac. But when I try to do so, I receive an error message as such:

    Any suggestions?


  2. Fishrrman macrumors G5


    Feb 20, 2009
    Here's a guaranteed way to eliminate that partition:

    1. Use a cloning app (such as CarbonCopyCloner or SuperDuper) to clone the contents of your internal drive to an external drive.
    2. Boot from the external clone (restart and hold down the option key until the startup manager appears -- then select the external drive and hit return)
    3. Once booted from the external, use Disk Utility to re-initialize the internal drive (single partition scheme is the default)
    4. RE-CLONE the contents of your backup drive BACK TO the internal drive.

  3. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    You might have better luck with this trying it from the recovery partition that way you are not running from the disk your are trying to change.

    Do a command-r boot to recovery then start Disk Utility and first try a repair disk then try the partition change.

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