root@ali-bakserver:~# umount /home/opt/log/112.16.4.10_LB2

umount.nfs: /home/opt/log/112.16.4.10_LB2: device is busy

umount.nfs: /home/opt/log/112.16.4.10_LB2: device is busy

root@ali-bakserver:~# umount -f /home/opt/log/112.16.4.10_LB2   #加-f参数，多试几次即可成功卸载

本文出自 “青春邓勇” 博客，请务必保留此出处http://dengyong.blog.51cto.com/8409869/1857675

umount 卸载