grub uuid设置

https://blog.csdn.net/gatieme/article/details/52722955

http://forum.ubuntu.org.cn/viewtopic.php?t=23900

http://blog.51cto.com/songchengyong/139412

https://support-intl.huaweicloud.com/zh-cn/usermanual-ims/zh-cn_topic_0086020895.html