查看硬盘UUID:
1、
ls -l /dev/disk/by-uuid
2、
blkid /dev/sda5
修改硬盘UUID:
1、新建和改变分区的UUID
sudo uuidgen | xargs tune2fs /dev/sda5 -U
2、将原有UUID写会到分区
tune2fs -U c1b9d5a2-f162-11cf-9ece-0020afc76f16 /dev/sda5