Quote:
Originally Posted by edgeprod
I had to research this a bit to see just how wrong you were. Even a Mac Pro Desktop from 2006 (the first one to come out) can run 10.7 (Lion) officially, and without any issues. And if you upgrade your GPU and emulate EFI64, you can run 10.8. Everything from early 2008 and up is fully supported by Apple for 10.8.x (Mountain Lion).
My machine, a 2009 Mac Pro, has EFI64 out of the box. It's a 64-bit kernel, just like a 2012 Mac Pro. It's an Intel X58 Chipset, just like a 2012 Mac Pro. Same system bus. Same memory. Same supported operating system: Mac OS X 10.8 "Mountain Lion".
http://en.wikipedia.org/wiki/Mac_pro |
Umm, hate to break it to you but I was there when Lion was released. There were a LOT of issues with upgrading older Macs. They likely eventually got ironed out I'm sure, but to say the issues weren't there is pretty ignorant.
By the way... the kernel is software, not hardware. So no, Your 2009 Mac Pro does not have EFI64 "out of the box". The software that runs on it does.
Either way, you missed the point. The point was the simple fact that newer Mac hardware is not supported in older OS X software, not that older Mac hardware isn't supported in newer OS X software.
For instance, the Intel Xeon 5620's that I run in my machine simply will not run on 10.5. Nor will 10.6 run on the 5620 or newer cpus to this day. The same thing applies to GPU's.
Nor would it run on 10.6 "out of the box". Support for the 5620's didn't come until 10.6.3, or 10.6.4. I forget which one. But after working with a few people at insanelymac, I got 10.6 running, updated it to 10.6.3 and it ran otherwise flawlessly on my machine until 10.7 came out. And with 10.7 came the ability to "vanilla install" OS X on to my machine.. meaning, ALL pure Apple software, no hacked kernels; no modified kexts; no EFI strings.
Oh and for the sake of being thorough, at the time I was running an Inno3D GTS 250 512MB 256B with full QE/CI capabilities on 10.6 (not that that I expect you to really know what that is)...