Re: x86_64 EFI support for grub2 ?

[Isaac Dupree <id@isaac.cedarswampstudios.org>]

Robert Millan wrote:
> On Tue, May 27, 2008 at 08:23:09PM +0800, Bean wrote:
>> It's possible to create multiple arch image, but it requires some
>> extra work. We need to compile i386-efi and x86_64-efi separately,
>> then use a tool to merge them. This can't be done in a single step.
> 
> Why not just drop the -m32 and always build "native" images?  So if you
> build the i386-efi target on i386, you get a 32-bit image and if you build
> it on x86_64 you get a 64-bit one?

take the MacBook.  There are different versions, let's call them (A), 
the original MacBook, 32-bit CPU; (B), mine, 64-bit CPU; and (C), 
Bean's, 64-bit CPU.

A and B require 32-bit EFI image. (actually, B might accept both 32 and 
64 bits images, I'm not sure)
C requires 64-bit EFI image.

I can run a 32-bit distro and linux-kernel on any of them -- A, B or C. 
  I can run a 64-bit distro on B or C.

Basically, neither CPU nor system arch tells you what kind of EFI image 
is "native".  There must be some way to find out what kind of image *is* 
native -- but I have no idea what it is.

-Isaac