Bug#812574: grub-pc: wants to overwrite admin configuration on each upgrade

[Colin Watson]

Control: forcemerge -1 841889

On Mon, Jan 25, 2016 at 09:28:56AM +0100, Thorsten Glaser wrote:
> On each upgrade, I get prompted by ucf, despite there never being
> any diff introduced by grub-pc, i.e. all it wants is to remove my
> local admin-provided changes and revert to the package’s default:
[...]
> Please ensure to use ucf only in a way that only asks the user or
> merges when there are diffs between the package-provided versions
> (old and new) of the package, not to revert the admin-made changes.

The current postinst is certainly trying to use ucf in such a way, so
let's try to debug this.  Please could you:

 * attach /var/lib/ucf/cache/:etc:default:grub
 * attach /etc/default/grub
 * show the output of "grep /etc/default/grub /var/lib/ucf/hashfile"

With any luck that will be enough to make some progress here.

Thanks,

-- 
Colin Watson                                       [cjwatson at debian.org]