今天启动virtualbox的xp虚拟机的时候报了个异常，异常信息如下：

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).


返回 代码:
0x80004005
组件:
Console
界面:
IConsole {d5a1cbda-f5d7-4824-9afe-d640c94c7dcf}

按照它给出提示，执行

jim@jim-laptop: $sudo /etc/init.d/vboxdrv setup
 * Stopping VirtualBox kernel module                                             *  done.
 * Recompiling VirtualBox kernel module                                         
 * Look at /var/log/vbox-install.log to find out what went wrong

哦，它让看看/var/log/vbox-install.log这个文件，打开它内容如下：

/etc/init.d/vboxdrv: 311: /usr/lib/virtualbox/src/build_in_tmp: not found

这就是问题所在了，估计是ubuntu 8.04升级了某个包导致了这个问题，我在官网论坛上找到了解决办法
执行如下

jim@jim-laptop:sudo mv /etc/vbox/vbox.cfg vbox.cfg.bak
jim@jim-laptop:/etc/vbox$ sudo /etc/init.d/vboxdrv setup
 * Stopping VirtualBox kernel module                                             *  done.
 * Recompiling VirtualBox kernel module                                        *  done.
 * Starting VirtualBox kernel module                                              *  done.

ok，再启动虚拟机就没问题了。