在默认情况下，Xen Server不允许利用yum自动安装GCC，这让我们在服务器上安装、

编译一些程序的时候很麻烦！有没什么方法能安装？

By default CentOS base repositories won’t be configured on XenServer. To compile and install nagios/bacula or any other app on server you might end up searching for compiler tools like gcc etc.

Here is a simple way to enable base repo and install gcc on your XenServer.

This will enable the base repository and pull the required packages for gcc.