Snow Leopard upgrade?

Discussion in 'iMac' started by tlime, Mar 27, 2012.

  1. tlime
    Expand Collapse
    macrumors newbie

    Mar 27, 2012
    I have an iMac with Leopard version 10.5 and am trying to upgrade to Snow Leopard V6.3 but a prompt comes up saying Mac OS X 10.6 cannot be installed on this computer...
    Anyone have a reason why?
    I have enough memory ie. 2 gb and more than enough memory on my hard drive.

    Thanks and regards
  2. r.j.s
    Expand Collapse
    Moderator emeritus


    Mar 7, 2007
    Which iMac?

    Are you trying to use a gray install disc?
  3. simsaladimbamba
    Expand Collapse


    Nov 28, 2010
    What exact iMac do you have?
    To find out what Mac OS X version you run, click :apple: > About This Mac:
    To find out, what exact Mac model you use, click :apple: > About This Mac > More Info > Hardware Overview:
    To see a more elaborate image explaining the above steps, click here.
    To see a more detailed video tutorial showing the above steps, click here (2 MB, 23s, .mp4).​

    And what exact DVD do you use? Is it a grey Restore DVD, which will only work with the specific model it came with?
  4. GGJstudios
    Expand Collapse
    macrumors Westmere


    May 16, 2008
    What disc are you using to install Snow Leopard? A retail disc, or a grey install disc from another Mac? The grey install discs that come with Macs are model-specific and will not work on other models. Also, 10.5 is your version of Mac OS X, not the iMac version.
  5. old-wiz
    Expand Collapse
    macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    The message "cannot be installed on this Mac" often means you have a restore disk for a different model. You need the retail disk, as GJ says.
  6. Grease2310
    Expand Collapse
    macrumors member

    Oct 15, 2007
    If memory served 10.6 dropped all PPC support, so if you have a non-Intel iMac that would be why.

Share This Page