VirtualBoxで`VirtualBox is complaining that the kernel module is not loaded`UbuntuVirtualBox $ vagrant up The provider 'virtualbox' that was requested to back the machine 'default' is reporting that it isn't usable on this system. The reason is shown below: VirtualBox is complaining that the kernel module is not loaded. Please run `VBoxManage --version` or open the VirtualBox GUI to see the error m