Re: GRUB device names wrt. ieee1275

[phcoder <phcoder@gmail.com>]

You could do it the way similar to how it's done on i386-pc:
jmp use_hardcoded
<code to retrieve boot block path>
use_hardcoded:
And then the grub-setup tool nops out the first jump if stage2 resides 
on a disk different than where bootblock is
David Miller wrote:
> From: phcoder <phcoder@gmail.com>
> Date: Sun, 22 Mar 2009 12:17:17 +0100
> 
>> As for the boot block I would prefer to acquire bootpath from OFW
>> instead of hardcoding in the boot sector. It has an obvious
>> advantage of e.g. USB booting even if no "usb" alias is defined. Is
>> it possible? (It seems it is but I'm not familiar with OFW yet,
>> looking at nvram is a bad idea because user may manually boot
>> another device from OFW console)
> 
> You can obtain the disk where the boot block was loaded from but with
> GRUB that can be miles away from where the second stage boot block and
> rest of the GRUB kernel reside.
> 
> I've been through this thought process already, that's why I've
> designed it this way with the full path encoded into the first stage
> boot block.


-- 

Regards
Vladimir 'phcoder' Serbinenko