通过lsblk命令查看

[root@3 ~]# lsblk -f
NAME   FSTYPE  LABEL    UUID                                 MOUNTPOINT
sr0    iso9660 config-2 2019-06-24-05-58-09-00               
vda                                                          
└─vda1 ext4             409c6895-f504-4501-974a-1e198938013e /
vdb                                                          
└─vdb1 ext4             4a11bfba-98da-48e0-bdf7-adc836839d65 /data

如上所示，4a11bfba-98da-48e0-bdf7-adc836839d65就是分区/dev/vdb的UUID
然后编辑# vi /etc/fstab

UUID=c51eb23b-195c-4061-92a9-3fad812cc12f /data1 ext4 0 0
即可