Bug#1108089: grub-efi-amd64, linux-image-amd64: system fails to boot because grub config not updated after latest kernel upgrade

[Colin Watson]

On Fri, Jun 20, 2025 at 06:04:26PM +0200, Felix Zielcke wrote:
>Am Freitag, dem 20.06.2025 um 15:28 +0100 schrieb Sean Whitton:
>> I have /etc/kernel/postinst.d/zz-update-grub.dpkg-dist only.
>>
>> Reinstalling grub2-common does not fix the problem.
>
>This is very strange.
>zz-update-grub is just a normal dpkg conffile. We don't do anything
>special with it.
>And according to our git, it wast last changed 2021.
>
>I guess to fix that with dpkg you would need to completely purge the
>package and then reinstall.

dpkg doesn't reinstall removed conffiles by default (it interprets that 
as a deliberate user change), but you can override that using 
--force-confmiss.

-- 
Colin Watson (he/him)                              [cjwatson at debian.org]