virtualbox tools 安装问题

Verifying archive integrity... All good.
Uncompressing VirtualBox 3.0.4 Guest Additions for Linux installation..............................................................................................................................................................................................................................
VirtualBox 3.0.4 Guest Additions installation
Please install the build and header files for your current Linux kernel.
The current kernel version is 2.6.18-128.1.1.el5
Please install the GNU compiler.
Problems were found which would prevent the Guest Additions from installing.
Please correct these problems and try again.

怎样才能安装上tools 谢谢
我是在图形界面上用终端里安装的

sudo sh autorun.sh

你这是arch吗？而且E文已经很清楚的提示你了

装gcc和kernel-header包