Comment 23 for bug 817017

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Pedro Nariyoshi (pedro-nariyoshi) wrote :

Hey Analogue,
The easiest way to solve this is to install grub-efi instead of grub-pc. There is a bunch of stuff about efi that I don't understand very well, but my advice is:
-Use Disk Utility to partition your drive (apparently OSX doesn't like other OSes touching the partition tables)
-Install Ubuntu using grub-efi option. If you are doing this on top of a existing Ubuntu installation, mount the EFI partition to /boot/efi and install grub-efi.
-When booted through EFI, the system will automatically use AHCI.

If you don't want to use EFI, I think there's no solution for it.