Running anaconda 13.21.176, the CentOS system installer - please wait
11:37:49 Starting graphical installation.
anaconda: Fatal IO error 104 (Connection reset by peer) on X server :1.0.
install exited abnormally [1/1]
The system will be rebooted when you press Ctrl -C or Ctrl-Alt-Delete.
创建虚拟机时，将Hardware compatibility 选成6.5-7.x 就可以了。
参考：http://blog.csdn.net/fanzhanki/article/details/47074717
