apt-get dist-upgrade, and remove virtualbox-5.1, there is an update on trusty-updates fixing this
** Changed in: virtualbox (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1662616 Title: virtualbox-dkms 4.2.10-dfsg-0ubuntu2: virtualbox kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1662616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs