新建虚拟机后启动时出现如下错误：

Kernel driver not installed (rc=-1908)

The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Re-setup the kernel module by executing

'/etc/init.d/vboxdrv setup'

as root. Users of Ubuntu, Fedora or Mandriva should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary.

执行/etc/init.d/vboxdrv setup后，出现了以下的错误：
[root@localhost ~]# /etc/init.d/vboxdrv setup
Stopping VirtualBox kernel module [ OK ]
Recompiling VirtualBox kernel module [FAILED]

解决方法：

执行 yum install kernel-devel

再执行
[root@liukai ~]# /etc/init.d/vboxdrv setup
Stopping VirtualBox kernel module [确定]
Recompiling VirtualBox kernel module [确定]
Starting VirtualBox kernel module [确定]
就可以了。