preupgrade F9 -> rawhide?

[Stephen Warren]

On Fri, November 7, 2008 1:21 pm, Will Woods wrote:
> On Fri, 2008-11-07 at 17:40 +0000, Camilo Mesias wrote:
>> A quick update on this. I successfully upgraded one machine about a
>> week ago, so I tried another machine today and it had a problem
>> booting during the install.
>> ...
> ...
> As far as we've been able to trace it, *something* causes GRUB stage2
> (or stage 1.5) to move its physical on-disk location. But we don't know
> what. Nothing that we're doing to GRUB *should* cause that. But
> something does, and then stage1 can't find the rest of GRUB, and we get
> stuck with "GRUB" on-screen and an unbootable system.
>
> Anyway. I've spent *weeks* trying to track that one down, bugging pjones
> (our GRUB maintainer) and esandeen (our mad ext3/ext4 hacker) endlessly,
> and never made any real progress. Reinstalling GRUB, as you did, is the
> proper fix when this happens. But we still don't know what causes it,
> and therefore how to keep it from happening in the first place.

Can preupgrade just re-install grub itself at some suitable point. It
seems that'd work around the issue...