Q: Upgrade OS X Client 10.5.8 to OS X Server 10.5 without formatting
Hi all,
I would like to "upgrade" the OS X Client 10.5.8 installed on my PowerMac G5 (M9592LL/A) to the server version. The main hard drive is 1TB and has lots of free space on it. The machine has 5.5GB of RAM for the moment.
However, because the server DVD is probably 10.5(.0), I get a yellow question mark on my hard drive in the installer, and the option to upgrade the system without reformatting is greyed out with the message "you cannot upgrade this version of mac os x because a newer version is installed".
I tried the method shown in Mac OS X Server v10.5: Installing on a computer that won't start up from the installation disc - Apple Support (I made sure I downloaded the OS X server 10.5.8 combo update 1.1, so it could be applied after installing OS X server...) but it did not work.
I also attempted to modify the /System/Library/CoreServices/SystemVersion.plist file to read 10.5 instead of 10.5.8. Although this allowed the hard drive to show "10.5" in the disk utility, it did not change anything about the installer not allowing an in-place upgrade (I even tried with 10.4.9, to no avail).
Is there a proven method that works to fool this OS X server installer do this kind of OS in-place upgrade?
Thanks in advance for all the tips!
PS:
- I know OS X Leopard is getting really old, and more and more unsafe with time
- No, I do not want to get an Intel Mac and upgrade to something more modern (my scanner software is for ppc only.. and no I do not want a new scanner either..)
PowerMac, Mac OS 9.2.x
Posted on Jan 14, 2015 8:36 AM