Wednesday, May 16, 2012

Boot grub through EFI in a MacBook


Make my mac boot through the EFI Boot interface

1. Make a small HFS+ partition (700MB could do it). I called it "EFI Boot".
2. mkdir -p /Volumes/EFI\ Boot/efi/boot
3. Compile your grub-efi following the instructions posted here [1]
 * It depends on the efi architecture: bootx64.efi is for a 64-bit EFI and bootx32.efi is for the 32 bit Implementation.

After that you reboot and press the 'option' key when the apple chime is heard and there will be a disk called "EFI Boot", simply select it and you will be booting into grub.

[1] http://wiki.osdev.org/GRUB#Build_Grub_EFI_binary_.28bootx64.efi.29
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