linux respin 备份镜像
参考链接：
https://blog.csdn.net/milo123456/article/details/71084254
https://blog.csdn.net/qq_41248872/article/details/82979136
参考链接：
https://blog.csdn.net/milo123456/article/details/71084254
https://blog.csdn.net/qq_41248872/article/details/82979136