Re: hybrid DOS/GPT and BIOS Boot Partition

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

On 01/23/11 15:39, walt wrote:
> Is there a way to make this configuration work? (I've used gdisk to
> convert DOS partition tables to GPT, so far.)

Yes... make a BIOS Boot Partition!

Such a partition couldn't hurt with DOS tables, too (I think there isn't 
a way to mark the partition table type as such in msdos tables, though? 
So maybe it can't be done / done easily.)

Basically, on msdos partitions, there's usually a post-MBR "gap" where 
there are no partitions and a part of GRUB is put there.  It can't be 
put in a filesystem because filesystems can shift their files around, 
and it's loaded by the <512 byte MBR, which can't be very smart.  GPT 
tends to fill up all the space you'd have a post-MBR gap in, so you have 
to do the more-explicit-and-reasonable approach of making a partition 
for the GRUB data (in GRUB2 we call it core.img).

[if my terminology is wrong, someone correct me]

-Isaac