I just ran into the same issue. I can confirm that the uninstall worked when setting SHUTDOWN_USERS to "all".
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/745429 Title: package virtualbox-ose 4.0.4-dfsg-1ubuntu3 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
