Hi, As Otavio pointed out, d-i is meant to install system to fresh formatted partition. This does not mean that you can not use d-i to migrate your system to new Debian with some skill.
Since you are an experienced admin, I suspect you were doing this fresh install to an empty partition while copying many configuration files and data from old system partition. Are you sure you did this configuration data migration properly? It does take careful attention to the detail. As I vaguely remember, Some Ubuntu installations do no set up root password but lets user login via sudo as default. Debian does not set up sudo as installed. So if you copied /etc/passwd and /etc/shadow from old Ubuntu to new Debian system, you are likely loose password login to root since Ubuntu file is missing it and you do not have sudo and its required setup. FYI: you must be careful about variable system group ID between 101-999 when migrating system with manual copying. I just got hit by this from lenny to squeeze upgrade. Osamu (You may be able to upgrade Ubuntu to Debian without d-i but toth dist-upgrade by pointing URL in /etc/apt-sources.list to newer Debian version. This Ubuntu->Debian conversion method is not guaranteed nor supported to work.) -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org