This was fixed for me by basically uninstalling everything mono, and reinstalling.
It's still worth looking at since it basically stops apt from working without a load of screwing around. Could cause problems for other people who are less used to dealing with apt. -- package libgmime2.2a-cil 2.2.22-2ubuntu1 failed to install/upgrade: subprocess post-installation script killed by signal (Interrupt) https://bugs.launchpad.net/bugs/382324 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs