Bug#2831: timezone conffiles vs. postinst
> 1) If I am not wrong, the prompt will appear only if the configuration
> file that _I_ provide changes, but I don't think I will ever have to
> change it.
I hope so. I had to do all kinds of hacking for my script to not get your
interactive timezone configuration menu while constructing the floppy base
system. I finally ended up using dpkg --unpack to unpack it, then I had the
script change /etc/timezone to an arbitrary timezone, then I ran
dpkg --configure, and then I put "Factory" back in /etc/timezone when it was
done. The scripts on the boot floppies will help the user set their time zone
when they install their system.