2011-07-17 Upgraded a Debian system from Etch to Lenny. (The machine has few power, thus I tend to stay a bit behind.) I had to manage few free disk space and a small internet bandwidth. But the real problem had been: E: Internal Error, Could not perform immediate confi- guration (1) on debconf Luckily, the community provided the solution: dpkg -i --force-confnew --force-depends \ /var/cache/apt/archives/debconf_1.5.24_all.deb [0] [0] http://debianforum.de/forum/viewtopic.php?t=108433 http://marmaro.de/lue/ markus schnalke