first i got the following error with apt-get update:

Reading Package Lists... Error!
E: Dynamic MMap ran out of room
E: Error occured while processing mule2-wnn (NewPackage)
E: Problem with MergeList /var/lib/dpkg/status
E: The package lists or status file could not be parsed or opened.

Could solve it by manually resizing the cache by adding the line

Apt::Cache-Limit "8388604";

to /etc/apt/apt.conf.

Now the update of the pkg-database worked fine, so i tried a

apt-get install xine-ui

it looked good, until after the download of all the related packages libc6 was to be updated.
An Error occured (something about a wrong dpkg, i can't remember) and now all efforts to install anything end with:

root@proton:~# apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
Correcting dependencies... Done
The following extra packages will be installed:
libc6
The following NEW packages will be installed:
libc6
0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 packages not fully installed or removed.
Need to get 0B/3350kB of archives. After unpacking 13.0MB will be used.
Do you want to continue? [Y/n] y
E: Cannot get debconf version. Is debconf installed?
(Lese Datenbank ... 68 Dateien und Verzeichnisse sind derzeit installiert.)
Entpacke libc6 (aus .../libc6_2.2.5-14.3_i386.deb) ...
dpkg ist nicht als installiert vermerkt, kann nicht auf Epochen-Unterstützung prüfen!
dpkg: Fehler beim Bearbeiten von /var/cache/apt/archives/libc6_2.2.5-14.3_i386.deb (--unpack):
Unterprozess pre-installation script gab den Fehlerwert 1 zurück
Fehler traten auf beim Bearbeiten von:
/var/cache/apt/archives/libc6_2.2.5-14.3_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)


i'm quite new to debian (coming from rpm-based linux ;-/), so i would appreciate any suggestion!!
thx

basti