[root@whp6 ~]# mount /dev/sdb5 /mnt/
[root@whp6 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G 2.1G 13G 14% /
tmpfs 931M 0 931M 0% /dev/shm
/dev/sda1 194M 28M 157M 16% /boot
/dev/sdb5 2.0G 68M 1.9G 4% /mnt
[root@whp6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/sda3 ext4 16311208 2134352 13348288 14% /
tmpfs tmpfs 953276 0 953276 0% /dev/shm
/dev/sda1 ext4 198337 28320 159777 16% /boot
/dev/sdb5 ext4 2071384 68632 1897528 4% /mnt
[root@whp6 ~]#

[root@whp6 ~]# ls /home/
1.txt 2 22 wanghaipeng whp
[root@whp6 ~]# mount /dev/sdb1 /home/
[root@whp6 ~]# ls /home
lost+found
[root@whp6 ~]# umount /home
[root@whp6 ~]# ls /home
1.txt 2 22 wanghaipeng whp
[root@whp6 ~]#

[root@whp6 /]# mount LABEL=wanghaipeng /home/whp/
[root@whp6 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G 2.1G 13G 14% /
tmpfs 931M 0 931M 0% /dev/shm
/dev/sda1 194M 28M 157M 16% /boot
/dev/sdb5 2.0G 68M 1.9G 4% /mnt
/dev/sdb1 2.0G 74M 1.9G 4% /home/whp
[root@whp6 /]# umount -l /home/whp/
[root@whp6 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G 2.1G 13G 14% /
tmpfs 931M 0 931M 0% /dev/shm
/dev/sda1 194M 28M 157M 16% /boot
/dev/sdb5 2.0G 68M 1.9G 4% /mnt
[root@whp6 /]#