3 Replies Latest reply: Aug 16, 2013 10:12 PM by Kappy
gritzildino Level 1 (0 points)

I recently purchased an iMac10,1. I purchased it with OSX 10.8.4 (Mountain Lion) already installed... I contacted the seller asking for the original OS discs...  he never replied :/. I have recently resold the Mac on ebay... When I went to wipe clean the computer I encountered a problem.. When I went onto this forum and called apple they encouraged me to purchase the original install OS (Snow Leopard). I have recieved snow leoipard in the mail... When I popped the disc in i recieved this message:

Screen Shot 2013-08-16 at 9.40.46 PM.png

How do I reboot/resart/reformat the computer to factory settings?

iMac, OS X Mountain Lion (10.8.4)
  • Kappy Level 10 (265,883 points)

    Try doing this instead:


    Booting From An OS X Installer Disc


    1. Insert OS X Installer Disc into the optical drive.

      2. Restart the computer.

      3. Immediately after the chime press and hold down the "C" key.

      4. Release the key when the spinning gear below the dark gray Apple

          logo appears.

      5. Wait for installer to finish loading.


    If this doesn't launch the installer, the contact Apple about replacing the disc they sent to you.

  • gritzildino Level 1 (0 points)

    Thanks for that! Now I went to disk utility to erase any and all of my files... I went to erase the disk and see there are two disk images... I am guessing one is a partition since it is more indented than the other one... I click on the top one that reads 1 TB ST0005... ... It say erasing a disk deletes all data on all partitions... What is a partition!? And does it matter that is being erased too?

  • Kappy Level 10 (265,883 points)

    You need to select the indented entry. That is a partition and the volume you will erase. Should look like this pic:


    Screen Shot 2013-08-16 at 10.11.09 PM.png


    This is my drive. It has four partitions.