Ubuntu Forums - View Single Post - [other] grub2 EFI boot loader internal/external booting

vasi

Hey, I've been trying to get Linux booting from USB on my MacBook4,1 (Intel X3100, 4GB RAM). I've had a few failures, but thanks to all your work on this I've finally mostly succeeded.

What worked:

Ubuntu Jaunty amd64 Desktop, with e820.c patched according to post #280
grub-efi 64-bit r2194

The following load commands:

Code:

set root=(hd0,2)
fix_video
loadbios /boot/vbios.bin /boot/int10.bin
linux /boot/vmlinuz-2.6.28-11-generic-4g root=/dev/sdb2 video=efifb
initrd /initrd.img

What didn't work:

Ubuntu Intrepid i386 (32-bit), it got stuck in that ata4 error loop
Kernels without the e820.c patch, they would freeze immediately after 'boot'.
Using 'noefi' to fix the freezing. It would get a bit farther, but not much. Screenshot: http://www.flickr.com/photos/9091104...72588/sizes/l/
I don't have a working console unless I add agp=off, fix_video doesn't seem to be helping.

I'd appreciate any advice re: the console. Also, is there a list of working configurations somewhere? I'd like to add what I ended up with, so the next person doesn't have to spend three days of trial and error

Thanks so much to everyone who helped get EFI boot working!

May 6th, 2009	#738
vasi 5 Cups of Ubuntu Join Date: Apr 2005 Beans: 15	Re: grub2 EFI boot loader internal/external booting Hey, I've been trying to get Linux booting from USB on my MacBook4,1 (Intel X3100, 4GB RAM). I've had a few failures, but thanks to all your work on this I've finally mostly succeeded. What worked: Ubuntu Jaunty amd64 Desktop, with e820.c patched according to post #280 grub-efi 64-bit r2194 The following load commands: Code: set root=(hd0,2) fix_video loadbios /boot/vbios.bin /boot/int10.bin linux /boot/vmlinuz-2.6.28-11-generic-4g root=/dev/sdb2 video=efifb initrd /initrd.img What didn't work: Ubuntu Intrepid i386 (32-bit), it got stuck in that ata4 error loop Kernels without the e820.c patch, they would freeze immediately after 'boot'. Using 'noefi' to fix the freezing. It would get a bit farther, but not much. Screenshot: http://www.flickr.com/photos/9091104...72588/sizes/l/ I don't have a working console unless I add agp=off, fix_video doesn't seem to be helping. I'd appreciate any advice re: the console. Also, is there a list of working configurations somewhere? I'd like to add what I ended up with, so the next person doesn't have to spend three days of trial and error Thanks so much to everyone who helped get EFI boot working!