两篇关于loop设备学习的文章
http://my.unix-center.net/~lishuai860113/?p=56
http://my.unix-center.net/~lishuai860113/?p=279
loop设备安装系统
http://www.linuxdiyf.com/viewarticle.php?id=36710
LFS 6.3的硬盘安装
http://blog.chinaunix.net/uid-26061689-id-1736940.html
