Probably because kernel modules are built during installation, and you have not the Ubuntu signing key, and moreover dkms doesn't support right now the kernel signature done by the end user
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574300 Title: Could not load 'vboxdrv' after upgrade to Ubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1574300/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
