Re: Is it possible to load 64-bit EFI in Mac Pro
Re: Is it possible to load 64-bit EFI in Mac Pro
- Subject: Re: Is it possible to load 64-bit EFI in Mac Pro
- From: Andrew Gallatin <email@hidden>
- Date: Tue, 12 Oct 2010 08:43:09 -0400
On 10/12/10 00:28, kiran kumar wrote:
Hi All,
We have a Mac Pro Dual Core Intel Xeon 2,66Ghz machine (Model Number:
MacPro1,1)
This model cannot boot the 64-bit kernel and the hardware design only
allowed use of a 32-bit kernel.
It has nothing to do with hardware design. Those machines run 64-bit
kernels just fine. It is just due to Apple deciding it wasn't worth
the effort to backport 64-bit EFI support to a machine they no
longer sell or support.
some Macs with 64-bit processors won’t be able to load the 64-bit kernel
because they have a 32-bit EFI.
Is it possible to load 64-bit EFI in my machine , if it's possible can
any one explain it .
Yes, but not in any Apple supported way. What I did to test my PCIe
driver on a 64-bit kernel was to use the hackintosh "pc-efi-v10"
bootloader. I use grub on a linux partition to launch the bootloader.
Its all very Rube-Goldberg-ish, and it has all the disadvantages of a
a "hackintosh" (no decent video support, etc). But for what I need
(testing 64-bit driver) it works well enough.
I did it quite a long time ago (when Snow Leopard was first released),
so I'm fuzzy on all the details.
Drew
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