Cant format hd for clean install

Discussion in 'iMac' started by fc0712, May 9, 2012.

  1. fc0712 macrumors regular

    Jun 19, 2010
    When i am in the lion recovery section, the one you can boot into.

    Then i try format my hard disk then i says that it cannot make it passive what should i do?
  2. robgendreau macrumors 68040

    Jul 13, 2008
    Are you trying to reformat the disk or just a volume on that disk?

    You cannot format the entire disk since you're using part of it. What exactly are you doing in Disk Utility? You haven't provided much information. Do you have a backup?
  3. fc0712 thread starter macrumors regular

    Jun 19, 2010
    I have tried to erase it and patrion it iv gives the error couldnt make disk passsive
  4. BrianBaughn macrumors 603


    Feb 13, 2011
    Baltimore, Maryland
    robgendreau is saying that you are booted from a partition on the disk you are trying to erase. Can't be done.

    You probably just want to erase the system partition if you're looking to reinstall Lion.

Share This Page