Bug#475718: Bug #475718 grub gets confused by hybrid apple/pc partmap

[Chris Knadle]

[sorry for the additional copy; forgot to CC the BTS]

On Monday 21 July 2008 06:44:45 pm, Felix Zielcke wrote:
> Is this still a problem with grub2 1.96+20080704-2 currently in
> testing/unstable ?

   Yes, unfortunately it is.  I just tested 0.97-41 and it still has the 
problem.  The last version that doesn't have the problem is grub-0.97-32 -- 
I've been having to force downgrade back to that version and then keep the 
package on hold.

   Pavel Roskin on the grub-devel mailing list made a suggestion that the 
problem might be fixed by having Grub check the magic number on the first 
sector of the partition to see if it's an Apple partition or a PC partition:

     http://lists.gnu.org/archive/html/grub-devel/2008-04/msg00077.html

   Unfortunately I haven't been able to figure out how to implement his 
suggestion yet.  I think the magic number Pavel was talking about is actually 
0xAA55 based on this:
 
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man8/fdisk.8.html


   I'll bring it up on the grub-devel mailing list again to see if I can get 
some help figuring out how to get this fixed.


   -- Chris

-- 

Chris Knadle
Chris.Knadle at coredump.us