This is actually a bug in Exim. The system tries to stop it before removing it (since both Postfix and Exim cannot be installed at the same time) and the attempt to stop Exim fails:
/sbin/start-stop-daemon: warning: failed to kill 5125: No such process invoke-rc.d: initscript exim4, action "stop" failed. ** Changed in: exim4 (Ubuntu) Sourcepackagename: postfix => exim4 -- postfix install ubuntu server edition fails because of dependencies https://bugs.launchpad.net/bugs/274012 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs