new patch (boot from LVM / RAID)

[Robert Millan]

On Sun, Jun 15, 2008 at 08:22:19PM +0200, Robert Millan wrote:
> 
> The memdisk part of this was basicaly a bugfix, so I checked it in.  The rest
> seems to duplicate stuff that grub-setup was already doing, and I think I'll
> have to take a closer look (I'll send another mail about that later).

I think I sorted this out.  The tip of the iceberg was that grub-setup is
prepending a drive to prefix twice when we run LVM on RAID.  However, it is
actually wrong that grub-setup mangles prefix in first place!  core.img might
be loaded by other means (e.g. from GRUB Legacy), and then these adjustments
have no effect.

I also think it's more flexible if these kind of decisions are taken in a
higher layer, so my patch moves this to grub-install, which relies on
grub-probe.  Then with grub-mkimage being capable of prepending a drive
to prefix, there's no need to do it in grub-setup.

This also fixes some minor issues I found along the way.

Any comments?

-- 
Robert Millan

<GPLv2> I know my rights; I want my phone call!
<DRM> What good is a phone call… if you are unable to speak?
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