Bug#422851: "grub-probe -t partmap" doesn't work with software RAID

[Sam Morris]

On Fri, 2007-05-18 at 08:51 +0200, Robert Millan wrote:
> On Sun, May 13, 2007 at 06:44:07PM +0200, Robert Millan wrote:
> > On Sun, May 13, 2007 at 12:02:26PM +0100, Sam Morris wrote:
> > > On Sat, 2007-05-12 at 22:16 +0100, Sam Morris wrote:
> > > > On Wed, 2007-05-09 at 18:13 +0200, Robert Millan wrote:
> > > > > I'm forwarding you a bug report from Debian.  It seems that the grub-probe
> > > > > -t partmap feature I just added doesn't play nice with RAID.  Unfortunately,
> > > > > I have no idea how software RAID is implemented.  Is it okay to just exit
> > > > > succesfuly and install core.img without any partmap module?
> > 
> > ... so apparently it isn't.  We still need to detect this somehow, or maybe we
> > could just print "pc gpt".. anyone can cast some light on this?
> 
> How about this as temporary solution?  It's ugly, but it's not worse than what
> we had before.

While I haven't tried your exact patch yet, I did try hardcoding the
partmap modules variable to 'pc gpt' and re-running grub-install. The
result didn't work however--I think I got dumped straight into rescue
mode. Either that, or I got to the empty-menu-that-freezes.

I'll confirm this at the weekend when I'm back at my home PC.

-- 
Sam Morris <sam at robots.org.uk>