http://archive.download.redhat.com/pub/redhat/linux/9/en/iso/i386/
http://www.jb51.net/do/plus/download1.php?open=1&aid=59919&cid=3&link=ZnRwOi8vMjExLjY4LjcxLjgwL3B1Yi9vcy1pbWFnZXMvUmVkJTIwSGF0LzkuMC9zaHJpa2UtaTM4Ni1kaXNjMS5pc28%3D
原文：http://www.cnblogs.com/lipenglin/p/4437809.html