Can you upgrade from GM to retail?

Discussion in 'OS X Mountain Lion (10.8)' started by Nathan576, Jul 20, 2012.

  1. macrumors member

    Joined:
    Jun 20, 2012
    #1
    Right now I have two partitions, one lion, the the other is mountian lion. Can I upgrade the lion to mountain lion GM and merge the partitions then when retail comes out upgrade to that. Is that possible? Does that make sense? lol
     
  2. macrumors regular

    Nero Wolfe

    Joined:
    Oct 28, 2007
    Location:
    Atlanta, GA
    #2
    The GM should be the retail version. So there's really no real reason to install it again. But if it makes you feel better go ahead and buy it from the App Store. I assume you plan on upgrading your Lion install to ML and then you wish to reclaim the disk space from the ML partition?

    If I'm remembering correctly (I strongly advise you to wait until someone else confirms this) you can delete the old GM ML partition in Disk Utility (using the "-" button) you should then be able to extend (by dragging) the Lion/ML Retail partition to include the entire disk, or the portion you deleted. I hope that makes sense...
     
  3. thread starter macrumors member

    Joined:
    Jun 20, 2012
    #3
    Well power nap doesn't work in the GM. And yeah what I plan to do is upgrade my lion to retail mountain lion when it comes out since I get it free with my 2012 macbook air, then I'll just have one partition but if I wanted to upgrade from mountain lion gm to the retail version would it work or would I need a clean install?
     
  4. macrumors 603

    Joined:
    Sep 19, 2003
    #4
    You could, but you'd be installing the exact same thing over again. It's a waste of time.

    Power nap needs a firmware update to work.
     
  5. macrumors 68000

    Joined:
    Jan 27, 2007
    #5
    Which will show up in software update after apple release mountain lion. So no need to reinstall anything.
     
  6. macrumors member

    Joined:
    Jun 25, 2012
    #6
    But do you get software update in GM builds if you're not a developer?
     
  7. SlCKB0Y, Jul 21, 2012
    Last edited: Jul 21, 2012

    macrumors 68040

    SlCKB0Y

    Joined:
    Feb 25, 2012
    Location:
    Sydney, Australia
    #7
    As long as you have bought ML from the App store you should...
     
  8. macrumors 6502

    jnl1211

    Joined:
    Jan 29, 2011
    Location:
    NWIndiana
    #8
    This has been mashed over roughly 4537856278465348296908386986324587923756 times already
     
  9. macrumors regular

    Joined:
    Jul 11, 2012
    #9
    gm is retail, retail is gm. It is byte for byte the exact same thing, when there were dvd's it was what was burned onto dvds.
     
  10. macrumors regular

    iwan073

    Joined:
    May 1, 2011
    Location:
    Holland
    #10
    No one is forcing you to answer
     
  11. macrumors 68040

    the8thark

    Joined:
    Apr 18, 2011
    #11
    For Lion it was. The GM was 100% the same as the retail build. The only difference is the GM had a different build number to the retail build. I know this because the people who purchased Lion got the retail build. But the people who got Lion for free with a code (through a recent Mac purchase) downloaded the GM from the Mac App Store.

    I was one of these people who got Lion for free thanks to purchasing a iMac a few weeks before Lion was released. And the version number of the Lion I downloaded was the same as the GM. And it updated to 10.7.1 etc etc just the same as the retail version did.

    So apart from a major unforeseen issue I'd say the GM pretty much equals the retail version for Mountain Lion.
     
  12. macrumors 6502

    jnl1211

    Joined:
    Jan 29, 2011
    Location:
    NWIndiana
    #12

    +1
     
  13. macrumors 603

    Joined:
    Sep 19, 2003
    #13
    Actually, system updates do not require input of your Apple ID, so this is not true. They work just like the old software update, except inside the app store.

    That said, you should buy it.
     

Share This Page