It's not aptitude's fault if purging _any_ package breaks the system. Reassigning to xserver-xorg-lts-utopic as closest package which may have been the cause.
P.S.: Purging all removed but not purged packages should always be used with care. ** Package changed: aptitude (Ubuntu) => xorg-lts-utopic (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1438264 Title: 'aptitude purge ~c' breaks 14.04.2 LTS upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-lts-utopic/+bug/1438264/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs