2 Replies Latest reply: Nov 13, 2013 11:47 AM by a brody
1Godlypr Level 1 (0 points)

I have iMac G5, Power PC.  Uses Tiger OS.  2 Ghz, 2G DDR.  version 10.4.11.  Can I upgrade at least to Leopard, and how?  Am told cannot be done, but have seen comments online the contrary.

iMac G5 (17-inch Ambient Light Sensor), Mac OS X (10.4.11)
  • Niel Level 10 (298,653 points)

    1. Yes.

    2. Buy a retail Mac OS X 10.5 DVD from a source such as Amazon or eBay. Disks which originally shipped with a computer won't work.



  • a brody Level 9 (65,743 points)

    Caution, your compatibility with Mac OS 9 (pre-2001) applications will be dropped if you upgrade to 10.5.

    Mind you, you will not gain access to Boot Camp, since all you have is a G5.


    If you still need Mac OS 9 applications, make sure to clone your Classic system folder to an external Firewire drive with Mac OS X 10.4.11 or earlier on it.


    Backup your data before installing anything new.   Dismount and disconnect all media devices before installation.

    Your maximum Mac OS X is 10.5.8.