vbox安装mac os x

http://zhiwei.li/text/2013/12/%E5%9C%A8virtualbox4-3-4%E4%B8%AD%E5%AE%89%E8%A3%85mavericks/

http://geeknizer.com/install-snow-leopard-virtualbox/

http://jingyan.baidu.com/article/d45ad1489911d069552b801c.html