thunderbird upgrade (testing/unstable) würde fehlschlagen?

[Matthias Haegele <mhaegele@linuxrocks.dyndns.org>]

Hallo!

Gerne hätte ich mozilla-thunderbird V 1.0.7 installiert.:

# apt-get install -s mozilla-thunderbird -t testing

[...]
The following extra packages will be installed:
  cpp-4.0 e2fslibs e2fsprogs gcc-4.0 gcc-4.0-base initscripts libc6 
libc6-dev
  libgcc1 libglib2.0-0 libpango1.0-0 libpango1.0-common libstdc++6 
libxrender1
  locales lsb-base mozilla-thunderbird-locale-de
Recommended packages:
  libglib2.0-data xprint xprt-xprintorg
The following NEW packages will be installed:
  libstdc++6 lsb-base
The following packages will be upgraded:
  cpp-4.0 e2fslibs e2fsprogs gcc-4.0 gcc-4.0-base initscripts libc6 
libc6-dev
  libgcc1 libglib2.0-0 libpango1.0-0 libpango1.0-common libxrender1 locales
  mozilla-thunderbird mozilla-thunderbird-locale-de
16 upgraded, 2 newly installed, 0 to remove and 888 not upgraded.
Inst libc6-dev [2.3.2.ds1-21] (2.3.5-6 Debian:testing) []
Inst locales [2.3.2.ds1-21] (2.3.5-6 Debian:testing) []
[...]
-----------------das-gefällt-mir-garnicht:-------------
E: This installation run will require temporarily removing the essential 
package e2fsprogs due to a Conflicts/Pre-Depends loop. This is often 
bad, but if you really want to do it, activate the APT::Force-LoopBreak 
option.
E: Internal Error, Could not early remove e2fsprogs
-------------------------------------------------------

Ist das "normal"?.
libc6 ist ja nicht gerade unwichtig, also eher nicht upgraden ...?

Grüsse MH