2 Replies Latest reply: Oct 22, 2012 6:09 PM by Texas Mac Man
tvrman1969 Level 1 (0 points)



I have just bought a set of original apple 10.5 leopard dics in GREY but they will not let me upgrade my mac from 10.4.11 even though the mac is a G4 - 1GHZ with ample hard disc space and RAM?


Any thoughts appreciated.




PowerBook, Mac OS X (10.4.11)
  • seventy one Level 6 (13,185 points)

    Hello Bob,


    I think you will find that the grey discs are machine specific.   You having bought them, I hope I am wrong or at least can return them.   Let us know how you get on.


    Type in 'Are 10.5 disks machine specific?' into the apple search communities box above.   The answer will be there.


    Message was edited by: seventy one

  • Texas Mac Man Level 8 (46,565 points)

    You need a retail Leopard install DVD that looks like this



    Mac OS X 10.5 Leopard installation system requirements



    Leopard is no longer available at the Apple Store but may be available by calling Apple Phone Sales @ 1-800-MY-APPLE (1-800-692-7753).


    If you can't obtain a retail install DVD from Apple, look on eBay or Google the installer part numbers to possibly find at an on-line store. Here's what to look for:


    MB427Z/A  Leopard 10.5.1 install DVD

    MB576Z/A  Leopard 10.5.4 install DVD

    MB021Z/A  Leopard 10.5.6 install DVD (single user)

    MB022Z/A  Leopard 10.5.6 install DVD (5-user family pack)


    Installing Mac OS X 10.5 Leopard



    Mac OS X 10.5 Leopard Installation and Setup Guide



    After you install the base 10.5, download & install the 10.5.8 combo update at http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update


    Caution - Leopard does not support classic mode. So, if you currently open OS 9 apps in classic mode, you won't be able to do this if you upgrade to Leopard.


     Cheers, Tom