Geronimo:
> Jochen Schulz wrote:
>>
>> AFAICS, we can rule out the kernel as the cuplrit completely, as grub
>> doesn't even get that far.
>
> VETO - after reboot, you might be right, but what happens during update-grub?
update-grub only creates the configuration file, it doesn't write the
MBR or anything like that.