3 Replies Latest reply: Feb 13, 2013 1:44 PM by mende1
Maxinmd Level 1 Level 1 (0 points)

When I attempt to upgrade to OS X Mountain Lion…I get a message that it is not compatible on my system. I currently run v.10.6.8. What am I doing wrong?


iMac, Mac OS X (10.6.8)
  • Niel Level 10 Level 10 (278,955 points)

    Nothing. Your computer is just too old; Mountain Lion requires a mid 2007 iMac (iMac7,1) or newer.

     

    (76763)

  • Kappy Level 10 Level 10 (255,870 points)

    Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion

     

    You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.

     

    Upgrading to Snow Leopard

     

    You must purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.

     

    After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.

     

         Snow Leopard General Requirements

     

           1. Mac computer with an Intel processor

           2. 1GB of memory

           3. 5GB of available disk space

           4. DVD drive for installation

           5. Some features require a compatible Internet service provider;

               fees may apply.

           6. Some features require Apple’s iCloud services; fees and

               terms apply.

     

    Upgrading to Lion

     

    If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.

     

    You can purchase Lion by contacting Customer Service: Contacting Apple for support and service - this includes international calling numbers. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.

     

         Lion System Requirements

     

           1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,

               or Xeon processor

           2. 2GB of memory

           3. OS X v10.6.6 or later (v10.6.8 recommended)

           4. 7GB of available space

           5. Some features require an Apple ID; terms apply.

     

    Upgrading to Mountain Lion

     

    To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.

     

         OS X Mountain Lion - System Requirements

     

           Macs that can be upgraded to OS X Mountain Lion

     

             1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later

             2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later

             3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later

             4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later

             5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later

             6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later

             7. Xserve (Early 2009) - Model Identifier 3,1 or later

     

    To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.

     

         Are my applications compatible?

     

             See App Compatibility Table - RoaringApps.

     

         For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

  • mende1 Level 10 Level 10 (91,320 points)

    OS X Mountain Lion requires a Mid 2007 or newer iMac, so you have got an older iMac that can't run OS X Mountain Lion.

     

    However, you can check if you can run OS X Lion > http://support.apple.com/kb/HT4949 If you can use OS X Lion, call Apple to purchase Lion > http://support.apple.com/kb/HE57 Then, make a backup of your data with Time Machine and/or Carbon Copy Cloner, and check that your applications are compatible > http://www.roaringapps.com

     

    Although OS X Lion requires only 2 GB of memory, you should install 4 GB of memory or more on your Mac to be able to run OS X Lion properly (although it may work correctly with 2 GB). You can buy RAM in OWC or Crucial