@chenyaobin7 CentOS-6.4-x86_64-bin-DVD1.iso CentOS-6.4-x86_64-bin-DVD2.iso These two dvd images contain the entire base distribution. Please burn DVD1 onto a DVD and boot your computer off it. A basic install will not need DVD2. After the installation is complete, please run "yum update" in order to update your system.