奇怪的umount问题？？？？？？？？？？？

zq97

debian:~# umount /home/zq/OOO-Install.iso
umount: /mnt/win: device is busy
umount: /mnt/win: device is busy
debian:~# lsof |grep /mnt/win/ 《----------------（没输出）
debian:~# umount /home/zq/OOO-Install.iso
umount: /mnt/win: device is busy
umount: /mnt/win: device is busy
debian:~#

vliqi

用fuser看一下

zq97

debian:/# fuser /mnt/win/
/mnt/win/:
debian:/# fuser -k /mnt/win/
/mnt/win/:
No automatic removal. Please use  umount /mnt/win
debian:/# umount /home/zq/OOO-Install.iso
umount: /mnt/win: device is busy
umount: /mnt/win: device is busy
debian:/#