console keymap settings lost after reboot

Binary package hint: console-data

I am running Lucid-amd64 on my machine.

lsb_release -rd
Description: Ubuntu lucid (development branch)
Release: 10.04

I installed it via:
debootstrap --arch amd64 lucid /tftpboot/ubuntu-10.4 http://de.archive.ubuntu.com/ubuntu/
chroot /tftpboot/ubuntu-10.4
apt-get install language-pack-en
apt-get install nfs-common linux-image-2.6.32-13-generic console-data
### I set the keymap to qwertz -> Germany -> latin1 - no dead keys. ###
groupadd ...
useradd ...
passwd ...
vigr ...

After editing /etc/initramfs-tools/initramfs.conf for boot via NFS and updating the initrd, I bootet the machine via PXE and had an english keymap after first login.
I then did "dpkg-reconfigure console-data". The following dialog showed the settings I did during install. After dpkg-reconfigure was done, I had the correct console keyboard layout again. But after a reboot, I was back to the English layout.
Even with a working German layout I cannot type any Umlauts (äöü) or ß.

dpkg -l|egrep "kbd|console-data|language-pack" shows the following:

ii console-data 2:1.10-1 keymaps, fonts, charset maps, fallback table
ii kbd 1.15-1ubuntu1 Linux console font and keytable utilities
ii language-pack-en 1:10.04+20100206.1 translation updates for language English
ii language-pack-en-base 1:10.04+20100206.1 translations for language English

After some digging in /etc/init.d/ I found keyboard-setup and keymap.sh.
dpkg showed the files were contained in the following packets:

dpkg -S /etc/init.d/keyboard-setup
console-setup: /etc/init.d/keyboard-setup
 dpkg -S /etc/init.d/keymap.sh
console-common: /etc/init.d/keymap.sh

After a look into /etc/init.d/keymap.sh I found the following lines:

# If setupcon is present, then we've been superseded by console-setup.
if type setupcon >/dev/null 2>&1; then
        exit 0
fi

After that I took a look into /etc/init.d/keyboard-setup.

The last 4 lines in /etc/default/console-setup looked like this:

XKBMODEL="pc105"
XKBLAYOUT="us"
XKBVARIANT=""
XKBOPTIONS=""

That explains, why the machine always comes up with an English layout.
This also means I have to do "dpkg-reconfigure console-setup" to change the layout.

So after installing console-data I would have expected at least a warning , telling me that what ever I set up under this dialogue will have no affect when console-setup is installed.

Thank you.