View Full Version : Installing multiple version of Mac OS X on one machine

01-30-2009, 05:58 AM
Hi all,
Is it possible to install multiple Mac OS X versions on one Mac OS X server?
If I purchase a Mac OS X server with Mac OS X 10.5 installed, can I install 10.3 and 10.4 also using 2 separate disks?

Thanks in advance...

01-30-2009, 06:26 AM
Do you mean you want to run different versions of OS X Server on the same server, rebooting between them?
Why do think this might be necessary? What is your purpose for considering this?
Perhaps there may be another way of trying to do what you want.

01-30-2009, 06:29 AM
I need all the versions installed one machine, so that I will have to buy only one server.

I need all the three for testing purposes.

01-30-2009, 06:46 AM
Testing what?

You would need to make a partition for each OS installation. However, there are new features relating to file systems in each version, so you may have a problem with 10.3 not implementing ACLs, for example.

01-30-2009, 06:48 AM
If your Mac server is new - such as a new Mac Pro, or and Xserve, then no, you can't install (and run) older versions of OS X Server. You would need to go back to a Mac G5 model to allow that.

You should provide more details about this 'testing' that you want to do.

01-30-2009, 06:51 AM
I need to test a backup tool I am trying to develop on 10.3 10.4 and 10.5
So, on a Mac G5 i will be able to install 10.3 10.4 and 10.5 on 3 separate disks?

01-30-2009, 07:16 AM
Sure, but the challenge will be finding an older G5. The newer G5s require 10.4 or newer.
I am still a little confused....
Do you want to test with OS X Server software, or just the OS X client software?

01-30-2009, 07:46 AM
you best bet would be to use a G4 machine to test the 10.3-10.4 OS.