Re: Question regarding --root-device and --prefix parameters

[Goh Lip]

On 02/22/2010 04:09 AM, Πρεκατές Αλέξανδρος wrote:
> Hi from greece.
>
> I'm troubled about the semantics of the --root-device parameter in
> grup-setup and --prefix in grub-mkimage. For time being i have the
> impression that they both are related with
> what files/dirs core.img will have access to, so the latter could
> override the first.
>
> thanks.
>
> ps:The context of my question is trying to set up a dedicated grub2
> partition , and
> having troubles making installed grub (i used grub-install
> --root-directory=/mnt/grub2 /dev/hda )
> find the grub.cfg i had in grub2 partition /dev/hda2.


I hope I understand you correctly. You have a dedicated grub2 partition 
but with a wrong/missing/bad grub.cfg?

I had a similar dedicated grub2 partition by using only this command
grub-install --root-directory=/media/Booto /dev/sda

where Booto is label of dedicated partition.

There is no grub.cfg and I created one and copied to 
/media/Booto/boot/grub/  taking care that UUID and set root is of that 
Booto partition and not of the copied grub OS. (you can remove the 
function recordfail, savedefault and others, and modify gfxmode, locale 
if you want). Also if there is new version of grub, do the grub-install 
--root-directory command again and you will have a new version without 
affecting the grub.cfg.

Hope this helps.

Regards - Goh Lip