http://blog.chinaunix.net/uid-27469977-id-3305158.html
+++++++++++++++++++++++++++++++++++++++++++++
http://wiki.centos.org/zh/FAQ/CentOS6
4. 为何 CentOS-6 拒绝在我的 i686 处理器上安装?
上游决定了不支持非 PAE 的处理器。如果你的处理器不支持 PAE,执行安装程序时你将会看见以下错误:
- This kernel requires the following features present on the CPU pae cx8