Thank you for taking the time to report this bug and contributing to Ubuntu. /var/lib/dpkg/info/ubuntu-realtime.postrm calls update-grub and that failed in your case. Re-assigning to grub2.
** Package changed: dpkg (Ubuntu) => grub2 (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2107681 Title: dpkg can not remove broken package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2107681/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs