I believe I know why this was happening. When I did aptitude safe- upgrade manually there was a package (grub) that asked for a question interactively. I guess that was the broken package that the cron job complained about.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/482200 Title: /etc/cron.daily/apt: Cache has broken packages, exiting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/482200/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
