从 17.04 升级到 17.10 后，我的 VirtualBox 无法启动：
$ VBoxManage --version
WARNING: The vboxdrv kernel module is not loaded. Either there is no module
available for the current kernel (4.13.0-16-generic) or it failed to
load. Please recompile the kernel module and install it by
sudo /sbin/vboxconfig
You will not be able to start VMs until this problem is fixed.
5.1.18r114002
$ sudo /sbin/vboxconfig
Created symlink /etc/systemd/system/multi-user.target.wants/vboxdrv.service ? /lib/systemd/system/vboxdrv.service.
Created symlink /etc/systemd/system/multi-user.target.wants/vboxballoonctrl-service.service ? /lib/systemd/system/vboxballoonctrl-service.service.
Created symlink /etc/systemd/system/multi-user.target.wants/vboxautostart-service.service ? /lib/systemd/system/vboxautostart-service.service.
Created symlink /etc/systemd/system/multi-user.target.wants/vboxweb-service.service …