How to wipe HD and do a fresh Lion install to sell laptop?

Discussion in 'Mac OS X Lion (10.7)' started by Gherkin, Aug 14, 2011.

  1. Gherkin macrumors 6502

    Joined:
    Apr 9, 2004
    #1
    I have a 2010 MBP that I am selling. ~3 weeks ago, I upgraded that machine to Lion.

    Last week, I bought an iMac. I did the Migration Assistant thing and transferred everything from the MBP to the new iMac.

    Now I want to wipe the HD on the MBP clean and put a fresh install of Lion so I can sell.

    So, I restart the MBP, I hold down CMD+R during the boot up, I select Disk Utility, and I select my drive and click erase. I get an error that says "Couldn't unmount drive."

    Not sure how to proceed.
     
  2. Gherkin thread starter macrumors 6502

    Joined:
    Apr 9, 2004
    #2
    Nevermind.

    For example in this image:

    [​IMG]

    I was selecting "75.5 GB Hitachi" instead of "Macintosh HD." I guess you are essentially erasing your Home folder on the machine when you do this.
     
  3. saulinpa macrumors 6502

    Joined:
    Jun 15, 2008
    #3
    It may be moot. The Lion that you downloaded is not transferable

    The license agreement:
     
  4. cinematicme macrumors member

    cinematicme

    Joined:
    Aug 2, 2011
    #4
    You have to put the OS the machine came with back on before you can sell it.
     
  5. Quad5Ny macrumors 6502a

    Quad5Ny

    Joined:
    Sep 13, 2009
    Location:
    New York, USA

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