Upgrading to Linux kernel 4.12 will break VirtualBox. Attempting to re-install VirtualBox 5.1.22 (either from the Ubuntu repositories or by downloading the binaries directly from virtualbox.org) will not help – the installation will fail. Thankfully, there is a patch available that can be applied – but only to the version of VirtualBox from virtualbox.org. IfRead more about VirtualBox on Host Running Kernel 4.12[…]