[问题]安装虚拟机出现的问题？？

[easoncai]

Creating group 'vboxusers'. VM users must be member of that group!

No precompiled module for this kernel found -- trying to build one. Messages
emitted during module compilation will be logged to /var/log/vbox-install.log.

Compilation of the kernel module FAILED! VirtualBox will not start until this
problem is fixed. Please consult /var/log/vbox-install.log to find out why the
kernel module does not compile. Most probably the kernel sources are not found.
Install them and execute

/etc/init.d/vboxdrv setup

as root.


以上是安装过程的问题

怎么解决阿／
晕




kernel-dev-2.6.21-1.3194.fc7.i686.rpm

我已经安装了这个。
不知道还要安装那个呢