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  1. #1

    Member Since
    Dec 09, 2011
    Upgrading EFI from 32-bit to 64-bit on Mac Pro with 64-bit processor
    I have been investigating the possibility of instalkling Fedora (Linux) on a separate drive on my Mac Pro. But the EFI is only 32-bit (even though the processors are 64-bit), and does not support the Fedora installation. Does anyone know of a workaround for this problem, or a way to upgrade the EFI?

  2. #2
    There is no way to do that to the best of my knowledge.

  3. #3

    Member Since
    Dec 09, 2011
    Thanks. I have read of methods that are claimed to work, but I have no way to verify them. Let's see if anyone else has any input.

  4. #4

    Member Since
    Dec 09, 2011
    Found this on the internet, but I don't know enough to evaluate it.
    Last edited by Gemless Ear; 04-21-2014 at 12:39 AM. Reason: forgot to include link.

  5. #5

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB PCI-e storgae StOS X.13.3
    Can't be done will always be 32bit EFI.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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