I just encountered the same on upgrading from dapper to hardy. After skimming through the config files, I found out that update-exim4.conf greps through /etc/exim4/conf.d, including backup files ("01....~") for the DEBCONF strings. After removing all *~ files, it went through. This could/should be fixed before hardy goes gold.
** Changed in: exim4 (Ubuntu) Status: New => Confirmed -- exim-4-config does not install on Gutsy https://bugs.launchpad.net/bugs/158147 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs