#查询UUID
[root@localhostdata]# ls -l /dev/disk/by-uuid/
total0
lrwxrwxrwx. 1rootroot10Apr1015:49d2822e25-bbff-4bd9-9812-95edb189e4ab -> ../../sda1
lrwxrwxrwx. 1rootroot10Apr1101:55e8cc2ee7-03df-4535-9581-c6f1bf7dd7d1 -> ../../sda3
lrwxrwxrwx. 1rootroot10Apr1015:49fb381ef9-6557-422f-bdcd-7acc90ec8d54 -> ../../sda2
[root@localhostdata]# blkid /dev/sda3
/dev/sda3: UUID="e8cc2ee7-03df-4535-9581-c6f1bf7dd7d1"TYPE="ext4"