Comments on: Does your Mac have 64bit EFI?

By: Fravadona

Fravadona — Wed, 20 Apr 2011 17:23:40 +0000

Actually, the “fakebios” option worked on my MacPro1,1 EFI32, but it did not on my XServe1,1 EFI32 (I tryied to install RedHat enterprise 6 x86_64 on the two boxes). So I’m stuck with the i386 release on the XServe …

Thank you for your good posts Chris,
Rafael.

By: Chris

Chris — Thu, 01 Jul 2010 23:19:41 +0000

It shouldn’t matter when you use it, but you can’t boot Linux without it (well you can, but it’s not as nice). Just install rEFIt from under OS X and configure it as per instructions (you have to run a shell script to enable it) and when you reboot it should find Linux. Give that a try anyway and see what happens

I don’t think that rEFIt supports booting from other drives, so you might have troubles there.. in which case, we might need to find something else.

-c

By: Dennis Schafroth

Dennis Schafroth — Thu, 01 Jul 2010 21:21:39 +0000

Ok, I found out a little by my self on your blog:
http://blog.christophersmart.com/2009/12/22/linux-on-mac-pro-with-multiple-drives-for-real-this-time/

which I havent followed yet.

But I don’t understand. Do I need rEFIt? Installed before using efidisk? To start the Fedora install? Does this trigger a EFI install ?

By: Dennis Schafroth

Dennis Schafroth — Thu, 01 Jul 2010 19:25:07 +0000

Chris, you seem to be the guy that know all about EFI and linux.

I just installed Fedora 13 on a Mac Pro, early 2008. Everything went well, until I had to boot, no Linux in the boot menu.

I used one physical drive for fedora. there are two bootable (RAID1) OS X. The model is EFI64 and I used the 64 bit fedora.

I thought (hoped) that fedora would work out of the box, but maybe I was naive. I would appreciate any input, you can give me.

cheers,
ennis

By: Chris

Chris — Wed, 03 Feb 2010 23:28:49 +0000

No worries

By: Noa Resare

Noa Resare — Wed, 03 Feb 2010 23:00:37 +0000

please ignore my previous comment. Your instruction is obviously correct and I should learn to cut&paste properly.

By: Noa Resare

Noa Resare — Wed, 03 Feb 2010 22:58:15 +0000

If you happen to run OSX 10.6 Snow Leopard you will need to add the -l option to ioreg to display the actual options of each node.

ioreg -l -p IODeviceTree -l |grep firmware-abi

seems to do the trick in both 10.5 and 10.6

By: Updated EFI GRUB2 tarball, including 64bit at the blog of Chris

Updated EFI GRUB2 tarball, including 64bit at the blog of Chris — Tue, 22 Dec 2009 06:20:34 +0000

[...] new 89MB file includes both 32bit and 64bit installers (sha1sum). For systems with a 64bit CPU but not a 64bit EFI, 64bit installs of Linux should work via the 32bit loader (bootia32.efi). Just select the relevant [...]

By: Linux on an Apple Xserve EFI only machine at the blog of Chris

Linux on an Apple Xserve EFI only machine at the blog of Chris — Tue, 22 Dec 2009 05:08:43 +0000

[...] bootia32.efi but if you’re running a 64bit system it should be bootx64.efi. NOTE: Your Mac must have a 64bit EFI to install 64bit EFI-only Linux. Else you can only run [...]

By: Linux on Mac Pro with multiple drives, for real this time at the blog of Chris

Linux on Mac Pro with multiple drives, for real this time at the blog of Chris — Tue, 22 Dec 2009 05:05:48 +0000

[...] Unmasking Evolution « Does your Mac have 64bit EFI? [...]