Linux修改挂载目录名称

Local系统管理员新增了一个VG，将一个原挂载点/u02改为了/u02-old， 如下所示。

[root@mylnx01 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       37G   21G   15G  60% /
/dev/sda1              99M   23M   71M  25% /boot
tmpfs                 7.9G     0  7.9G   0% /dev/shm
/dev/mapper/VolGroup02-LogVol20
                       60G   37G   20G  66% /u03
/dev/mapper/VolGroup03-LogVol30
                       60G   36G   21G  64% /u04
/dev/mapper/VolGroup04-LogVol40
                      148G   54G   88G  38% /u02
/dev/mapper/VolGroup01-LogVol10
                       60G   54G  3.0G  95% /u02-old

 

但是这个挂载点/u02-old（挂载目录）不是我们想要的，现在我们需要修改挂载目录名称，那么如何做呢？下面是操作步骤。

 

步骤1 ：umount这个设备或挂载目录，如下所示

 

[root@mylnx01 ~]# umount /u02-old
umount: /u02-old: device is busy
umount: /u02-old: device is busy
[root@mylnx01 ~]# fuser -m /u02-old
/u02-old:             5205c
[root@mylnx01 ~]# ps -ef | grep 5205
root      5205  5201  0 May09 pts/1    00:00:00 bash
root     24930 24687  0 08:13 pts/2    00:00:00 grep 5205
[root@mylnx01 ~]# kill -9 5205
[root@mylnx01 ~]# umount /u02-old



[root@mylnx01 ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       37G   21G   15G  60% /
/dev/sda1              99M   23M   71M  25% /boot
tmpfs                 7.9G     0  7.9G   0% /dev/shm
/dev/mapper/VolGroup02-LogVol20
                       60G   37G   20G  66% /u03
/dev/mapper/VolGroup03-LogVol30
                       60G   36G   21G  64% /u04
/dev/mapper/VolGroup04-LogVol40
                      148G   54G   88G  38% /u02
[root@mylnx01 ~]#

 

步骤2：新建或重命名挂载点目录

 

[root@mylnx01 u02-old]# cd ..
[root@mylnx01 /]# mv /u02-old/  /u05

 

步骤3：重新挂载设备到挂载点或目录

 

[root@mylnx01 u05]# mount /dev/VolGroup01/LogVol10 /u05
[root@mylnx01 u05]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                       37G   21G   15G  60% /
/dev/sda1              99M   23M   71M  25% /boot
tmpfs                 7.9G     0  7.9G   0% /dev/shm
/dev/mapper/VolGroup02-LogVol20
                       60G   37G   20G  66% /u03
/dev/mapper/VolGroup03-LogVol30
                       60G   36G   21G  64% /u04
/dev/mapper/VolGroup04-LogVol40
                      148G   54G   88G  38% /u02
/dev/mapper/VolGroup01-LogVol10
                       60G   54G  3.0G  95% /u05

 

步骤4：编辑/etc/fastab配置信息。

 

[root@mylnx01 /]# vi /etc/fstab
/dev/VolGroup00/LogVol00 /                        ext3    defaults        1 1
LABEL=/boot             /boot                     ext3    defaults        1 2
tmpfs                   /dev/shm                  tmpfs   defaults        0 0
devpts                  /dev/pts                  devpts  gid=5,mode=620  0 0
sysfs                   /sys                      sysfs   defaults        0 0
proc                    /proc                     proc    defaults        0 0
/dev/VolGroup00/LogVol01 swap                     swap    defaults        0 0
/dev/VolGroup02/LogVol20                /u03            ext3    defaults        1 2
/dev/VolGroup03/LogVol30                /u04            ext3    defaults        1 2
/dev/VolGroup04/LogVol40                /u02            ext3    defaults        1 2
/dev/VolGroup01/LogVol10                /u02-old        ext3    defaults        1 2