Re: GRUB2 (packaged with Ubuntu 12.10) won't boot OS X

[Alex Kanavin]

2012/11/7 Chris Murphy <address@hidden>:
>> EFI I guess. How do I find out and switch between modes?
>
> What are you using as the first boot manager? The built-in one using option 
> key at startup chime, or rEFIt/rEFInd?

I'm not using anything specifically; when I switch on or reboot the
computer, it goes straight into the Grub menu. I think Ubuntu wrote
some magic into NVRAM during installation to make that happen, and
firmware is able to pick up the grub bootloder from EFI system
partition (which is FAT32). Just as it should be :)

If I do hold the option key, I get two choices: either rEFInd
(installed on OS X partition), or "Windows". If I choose 'Windows'
(which I've never had on the machine, and I never used Boot Camp
either) I get a "No operating system error" after some time.