Mountain Lion on iMac

Discussion in 'OS X Mountain Lion (10.8)' started by macbanda, Jan 6, 2013.

  1. macbanda macrumors member

    Aug 22, 2008
    I just bought a new MacBook pro with Mountain Lion, I have an iMac I'd like to upgrade to Mountain Lion, do I have to purchase a separate license if I want to install?

    Thank you.
  2. IGregory macrumors 6502a


    Aug 5, 2012
    The way I read Apple's licensing agreement, paragraph #2, the answer is no.
  3. iThinkergoiMac macrumors 68030

    Jan 20, 2010
    No, you can install ML (that you've purchased from the App Store) on all your Macs registered with your Apple ID.
  4. JediMeister macrumors 68040

    Oct 9, 2008
    As I understand it, the preinstalled license does not actually count as a purchased copy the OP can reinstall on another computer. The preinstalled copy does not require an AppleID to reinstall, and will not cause Mountain Lion to be listed in the Purchases tab of the App Store. If the OP wants to upgrade another computer that did not come with Mountain Lion, he/she must purchase Mountain Lion for the $19.99 from the Mac App Store.
  5. macbanda thread starter macrumors member

    Aug 22, 2008
    Thanks to all that responded - I decided to buy it since it's only $20. I have yet to install it. I know backing up my information is the wise thing to do but I'm curious if anyone has had problems losing information when upgrading.
  6. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    I have not seen anybody losing data during a normal Mountain Lion upgrade, but here is what I have seen a few times. Installing a new OS gives the hard drive a pretty good workout and I have seen drives just up and die during the OS install due to the stress of the OS install itself.
  7. benwiggy macrumors 68020

    Jun 15, 2012
    The OS upgrade is designed to replace the system files and leave your user data, settings and apps intact.

    But, you should have a backup, regardless of installing a new OS.

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