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

[Michal Suchanek]

2009/8/26 Robert Millan <rmh at aybabtu.com>:
> On Thu, Aug 06, 2009 at 10:24:57AM +1000, Jayen wrote:
>> 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).
>
> What happens if you comment out the "search" commands?  (all of them)
>
> And if you add "insmod linux" at the beginning of grub.cfg?
>

Neither helps.

"You have to load kernel first."

I tried loading the kernel by hand which sort of works but then I do
not get the 'boot' command so I cannot start it.

With grub rescue CD I managed to do this so I suspect there is
something deficient in the on-disk installation of grub.

Thanks

Michal