查看/etc/fstab：
UUID=990fd13e-a0b9-40fe-af7b-3b636383d765 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation UUID=9aa85597-6ac7-4461-9c08-c5af603fbb79 /home ext4 defaults 0 2
# swap was on /dev/sda1 during installation UUID=6a5da7c1-2c58-41de-acf3-fd18c4a0f5c0 none swap sw 0 0
查看分区对应UUID：
lee@dell:~$ sudo blkid
[sudo] password for lee:
/dev/sda1: UUID="6a5da7c1-2c58-41de-acf3-fd18c4a0f5c0" TYPE="swap" PARTUUID="5d15a0ab-01"
/dev/sda5: UUID="990fd13e-a0b9-40fe-af7b-3b636383d765" TYPE="ext4" PARTUUID="5d15a0ab-05"
/dev/sda6: UUID="9aa85597-6ac7-4461-9c08-c5af603fbb79" TYPE="ext4" PARTUUID="5d15a0ab-06"
/dev/sdb5: LABEL="data" UUID="145ec256-932f-4e66-b0a4-7629d8b4f802" TYPE="ext4" PARTUUID="02bd46ea-05"
把分区信息写到/etc/fstab中：
写完后的/etc/fstab如下：
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda5 during installation
UUID=990fd13e-a0b9-40fe-af7b-3b636383d765 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=9aa85597-6ac7-4461-9c08-c5af603fbb79 /home ext4 defaults 0 2
# swap was on /dev/sda1 during installation
UUID=6a5da7c1-2c58-41de-acf3-fd18c4a0f5c0 none swap sw 0 0
# the second hard disk
UUID=145ec256-932f-4e66-b0a4-7629d8b4f802 /media/data ext4 defaults 0 0
重启，ok。