Re: grub-efi with latest mac mini

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 08.06.2012 20:34, Chris Murphy wrote:

> a.) Mac Mini's EFI implementation can use either MBR or GPT schemes for 
> booting.
> 
> b.) If this is a dual boot situation, Mac OS X is EFI only, effectively 
> requires GPT and an EFI System partition. Your particular Linux distribution 
> support of Apple's unique EFI, which is not UEFI, determines whether you will 
> boot Linux or Windows or whatever you're booting, either in EFI mode, or CSM 
> (BIOS emulation) mode.
> 

Wrong. EFI doesn't require GPT or other round. Mac OS X installer will
refuse to install on GPT but if you force it, Mac OS X will be able to
boot alright. Also Mac OS doesn't use EFI system partition other than
for firmware updates.

> c.) If CSM is required for the foreign OS, and this particular Mac mini, then 
> GRUB2 EFI is inapplicable. You'd use GRUB2.

> And it necessarily means the nasty situation of hybrid MBR (disk appears to 
> be MBR to the foreign OS, and appears to be GPT to Mac OS).
> 

You mix again 2 things: you can boot in BIOS mode (CSM) on pure GPT as
well. Windows is an exception since Microsoft pretends that possible is
impossible.


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko

signature.asc
Description: OpenPGP digital signature