Yep, after removing 'virtualbox-dkms' and installing the new version (from Oracle) means I can run my VMs again.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1292118 Title: virtualbox-dkms 4.1.12-dfsg-2ubuntu0.6: virtualbox kernel module failed to build [error: incompatible types when returning type ‘kuid_t’ but ‘RTUID’ was expected] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1292118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs