linux mount 硬盘挂载和卸载

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Linux 挂载

[root@whp6 ~]# mount /dev/sdb5 /mnt/
[root@whp6 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G .1G 13G % /
tmpfs 931M 931M % /dev/shm
/dev/sda1 194M 28M 157M % /boot
/dev/sdb5 .0G 68M .9G % /mnt
[root@whp6 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/sda3 ext4 % /
tmpfs tmpfs % /dev/shm
/dev/sda1 ext4 % /boot
/dev/sdb5 ext4 % /mnt
[root@whp6 ~]#

备注：如果挂载到有文件的目录下会遮挡原先文件必须卸载挂载的硬盘才能显示

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

Linux umount 卸载

[root@whp6 /]# mount LABEL=wanghaipeng /home/whp/
[root@whp6 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G .1G 13G % /
tmpfs 931M 931M % /dev/shm
/dev/sda1 194M 28M 157M % /boot
/dev/sdb5 .0G 68M .9G % /mnt
/dev/sdb1 .0G 74M .9G % /home/whp
[root@whp6 /]# umount -l /home/whp/
[root@whp6 /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 16G .1G 13G % /
tmpfs 931M 931M % /dev/shm
/dev/sda1 194M 28M 157M % /boot
/dev/sdb5 .0G 68M .9G % /mnt
[root@whp6 /]#