linux取消硬盘挂载

查看挂载目录

[root@bogon www]# df -TH

Filesystem              Type      Size  Used Avail Use% Mounted on
devtmpfs                devtmpfs  2.0G     0  2.0G   0% /dev
tmpfs                   tmpfs     2.0G     0  2.0G   0% /dev/shm
tmpfs                   tmpfs     2.0G   19M  2.0G   1% /run
tmpfs                   tmpfs     2.0G     0  2.0G   0% /sys/fs/cgroup
/dev/mapper/centos-root xfs        31G  9.6G   21G  32% /
/dev/sda1               xfs       521M  174M  347M  34% /boot
tmpfs                   tmpfs     398M     0  398M   0% /run/user/1004
tmpfs                   tmpfs     398M   13k  398M   1% /run/user/42
tmpfs                   tmpfs     398M     0  398M   0% /run/user/0
//172.20.30.253/shrePub cifs      203G   24G  180G  12% /www/wwwroot

查看挂载目录进程ID

fuser -m /www/wwwroot

查看进程

ps aux | grep 21746

root     21746  0.0  0.0 117528  2212 pts/2    Ss   May12   0:00 -bash
root     27307  0.0  0.0 114692   960 pts/2    S+   10:25   0:00 grep --color=auto 21746

杀掉进程ID

[root@hdp01 centos7]# kill -9 21746

取消挂载

umount /www/wwwroot