Posted 12 November 2012 - 11:25 AM
It's a step-by step guide for installing mountain lion on an older model Mac Pro. What's strange is he's using Chameleon, complete with an smbios, boot.plist, etc... Which basically turns it into a semi-hackintosh. I was under the impression that installing Chameleon on a real mac would make it non-bootable. How does this work? Is it the fact that he's using --legacy when blessing the partition?
This is strictly out of curiosity as my Macbook Pro is 100% Mountain Lion compatible and I have absolutely no reason to do it.
Posted 12 November 2012 - 12:19 PM
Posted 12 November 2012 - 12:46 PM
I remember chameleon teams has ever announced that chameleon should NOT be installed on real macs. It's still a little bit curious how does the owner made it.
Old mac pro doesn't have 64-bit EFI required by ML to boot so Chamaleon is used to emulate that. Second, he' s using smbios.plist to change the platform-id to fool the ML installer, that would refuse to install the OS on Mac Pro 1,1.
Posted 12 November 2012 - 02:14 PM
Posted 12 November 2012 - 02:27 PM
Basically, no, installing chameleon will not make the machine unbootable *if you do it correctly*, it may however make graphics not work.
Posted 12 November 2012 - 02:28 PM
Posted 12 November 2012 - 11:41 PM
Native Mac EFI 32 boot > BIOS emulation mode > Cahmeleon EFI 64 emulation mode > OS boots up.
Bit complicated, but seems (in a way) similar to booting on non UEFI BIOS PCs, via Tianocore EFI. This is used to install and run Windows 7 64bit from GPT disk on PCs without UEFI (with just plane old BIOS).
Posted 13 November 2012 - 10:38 AM
Posted 19 February 2013 - 07:32 PM
Posted 19 February 2013 - 08:29 PM
Posted 22 February 2013 - 04:55 AM
btw (to reiterate what the round one said) the MacPro1,1 has 32-bit EFI firmware, and therefore cannot run Mountain Lion.
You can get around this Apple-imposed limitation by installing Chameleon on it.
- theconnactic likes this
Posted 22 February 2013 - 05:30 AM
However, it just came to my mind as i'm writing this post: what about PC parts? Would they necessarily have be flashed with an EFI-compatible ROM to run properly or at all, or couldn't they just be dsdt-injected as is?
Posted 23 February 2013 - 04:37 AM
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