Bug#540125: grub-pc: upgrade renders system unbootable

[Felix Zielcke]

Am Donnerstag, den 06.08.2009, 07:57 +0200 schrieb Felix Zielcke:
> Am Donnerstag, den 06.08.2009, 10:24 +1000 schrieb Jayen:
> > Package: grub-pc
> > Version: 1.96+20090725-1
> > Severity: critical
> > Justification: breaks the whole system
> > 
> > 
> > I know On i386-pc (and amd64), the grub package never updates the installed 
> > version of GRUB automatically.  However, this has rendered the system 
> > unbootable for me twice now.  I know I'm running something unstable, but users 
> > should NOT be expected to know how to fix an unbootable system.  There should 
> > at least be a debconf question of whether to run grub-install.
> > 
> > The error I'm getting is "Unknown command: initrd" similar to #513592 and 
> > #497791 (and probably others).
> > 
> 
> Uhm we have already a debconf prompt for running grub-install.
> Currently it gets shown when core.img exists and the package is
> upgraded. But in SVN we changed it now that it gets shown when there are
> no grub-legacy files in /boot/grub and core.img exists, i.e. no check if
> the package gets upgraded.

Try dpkg-reconfigure grub-pc
that should show the debconf prompt.
I just tried it now out again with current sid/squeeze version.
debconf prompts are by design shown only once, so maybe it was shown and
you didn't notice this.

-- 
Felix Zielcke
Proud Debian Maintainer