Thanks for your bugreport. I can not reproduce this problem here. Are you using the edgy versions of apt-get/aptitude? Do you use any other frontends (like synaptic/adept)? I currently have no idea why it empty that file.
What should happen is that if you e.g. install: $ sudo apt-get install 3ddesktop it should bring in libimlib2 and that should be then marked in /var/lib/apt/extended_states as Auto-Installed Cheers, Michael ** Changed in: apt (Ubuntu) Status: Unconfirmed => Needs Info -- [feisty] [apt] command line apt-get/aptitude breaks update-manager https://launchpad.net/bugs/74190 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs