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grub2 and fat efi files on latest Apples
From: |
James Jarvis |
Subject: |
grub2 and fat efi files on latest Apples |
Date: |
Wed, 13 May 2009 16:35:26 +0100 |
User-agent: |
Thunderbird 2.0.0.19 (X11/20090107) |
Newbie post but hopefully I will be providing some useful data rather
than merely questions...
I have been using the svn trunk over the last few days with some success
compiling 32 and 64 bit EFI grub and creating a dual architecture
grub.efi from the results that seems to work on hard disk on newer and
older Apple Intel Macs. I use the fatglue.py python script from refit to
make the fat grub.efi. Not sure if anyone else is doing anything similar...
I have observed that fat modules don't work - need to use grub-mkimage
to insert all the required modules.
Another interesting observation (not really grub but maybe worth
comment) is that using a Linux 2.6.29.2 kernel and initrd on the newer
macs in efi mode boot (uses framebuffer console) works up until the
insertion of modules. It appears that some modules do insert and other
don't. The same kernel and initrd booted in "legacy mode" (after a call
to fakebios) boots fine.
Finally, the reboot call from linux on the iMac 9,1 hangs - possibly an
issue with fakebios??? If the output of grub-dumpbios is any use let me
know...
Models tested (all intel)
macmini
iMac 4,1 requires ia32 or "fat" grub.efi
iMac 8,1 requires x86_64 or "fat" grub.efi
iMac 9,1 requires x86_64 or "fat" grub.efi
James
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The University of Edinburgh is a charitable body, registered in
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- grub2 and fat efi files on latest Apples,
James Jarvis <=