今天有说更新内核，开机进入VBOX无法启动，提示：
VirtualBox kernel driver not installed. The vboxdrv kernel module was either not loaded or /dev/vboxdrv was not created for some reason. Re-setup the kernel module by executing ‘/etc/init.d/vboxdrv setup’ as root.
VBox status code: -1908 (VERR_VM_DRIVER_NOT_INSTALLED).

Result Code:
0×80004005
Component:
Console
Interface:
IConsole {1dea5c4b-0753-4193-b909-22330f64ec45}

解决办法：

sudo /etc/init.d/vboxdrv setup

就OK了:)