I read on a forum post (http://www.ubuntuforums.org/showthread.php?t=228788) to use aptitude instead of update manager or apt-get because it handles dependencies better. I ran dist-upgrade twice to get the new upstart package (as well as others), but after that I got the EXACT same packages being kept back. After figuring out how to use aptitude, those packages have been fixed.
My advice: try aptitude. -- dapper -> edgy dist-upgrade holds back essential packages https://launchpad.net/bugs/63680 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs