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Centos 7如何修改已挂载目录名,实战修改/home为/www

实战主机系统Centos7.6

已知挂载目录名home,需要修改成www
查看当前目录名以及挂载点

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[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_have-lv_root 8.5G 912M 7.1G 12% /
tmpfs 497M 0 497M 0% /dev/shm
/dev/xvda1 485M 71M 389M 16% /boot
/dev/xvdb1 20G 172M 19G 1% /home
[root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_have-lv_root 8.5G 912M 7.1G 12% / tmpfs 497M 0 497M 0% /dev/shm /dev/xvda1 485M 71M 389M 16% /boot /dev/xvdb1 20G 172M 19G 1% /home
[root@localhost ~]# df -h
Filesystem                    Size  Used Avail Use% Mounted on
/dev/mapper/vg_have-lv_root   8.5G  912M  7.1G  12% /
tmpfs                         497M     0  497M   0% /dev/shm
/dev/xvda1                    485M   71M  389M  16% /boot
/dev/xvdb1                    20G   172M   19G   1% /home

先卸载已挂载目录

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[root@localhost /]# umount /home
[root@localhost /]# umount /home
[root@localhost /]# umount /home

把根目录下home目录名修改成www

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[root@localhost /]# mv home www
[root@localhost /]# mv home www
[root@localhost /]# mv home www

修改fatab文件

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[root@localhost /]# vi /etc/fstab
/dev/mapper/vg_have-lv_swap swap swap defaults 0 0
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/xvdb1 /home ext4 defaults 0 0
[root@localhost /]# vi /etc/fstab /dev/mapper/vg_have-lv_swap swap swap defaults 0 0 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/xvdb1 /home ext4 defaults 0 0
[root@localhost /]# vi /etc/fstab
/dev/mapper/vg_have-lv_swap swap                    swap    defaults        0 0
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/xvdb1             /home                ext4    defaults        0 0

看到了原来已经挂载的目录名home,将其修改为正确的挂载目录名www,并保存

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[root@localhost /]# vi /etc/fstab
/dev/mapper/vg_have-lv_swap swap swap defaults 0 0
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/xvdb1 /www ext4 defaults 0 0
[root@localhost /]# vi /etc/fstab /dev/mapper/vg_have-lv_swap swap swap defaults 0 0 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/xvdb1 /www ext4 defaults 0 0
[root@localhost /]# vi /etc/fstab
/dev/mapper/vg_have-lv_swap swap                    swap    defaults        0 0
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/xvdb1             /www                ext4    defaults        0 0

修改完成后重启系统

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[root@localhost /]# reboot
[root@localhost /]# reboot
[root@localhost /]# reboot

最终的修改后的效果

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[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_have-lv_root 8.5G 912M 7.1G 12% /
tmpfs 497M 0 497M 0% /dev/shm
/dev/xvda1 485M 71M 389M 16% /boot
/dev/xvdb1 20G 172M 19G 1% /www
[root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_have-lv_root 8.5G 912M 7.1G 12% / tmpfs 497M 0 497M 0% /dev/shm /dev/xvda1 485M 71M 389M 16% /boot /dev/xvdb1 20G 172M 19G 1% /www
[root@localhost ~]# df -h
Filesystem                    Size  Used Avail Use% Mounted on
/dev/mapper/vg_have-lv_root   8.5G  912M  7.1G  12% /
tmpfs                         497M     0  497M   0% /dev/shm
/dev/xvda1                    485M   71M  389M  16% /boot
/dev/xvdb1                    20G   172M   19G   1% /www

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