卸载NFS，结果出现无法卸载的情况
1 [root@localhost /]# umount /udisk/ 3 umount: /udisk: device is busy 5 umount: /udisk: device is busy
使用umount -f，问题依旧
1 [root@localhost /]# umount -f /udisk 2 umount2: Device or resource busy 3 umount: /udisk: device is busy 4 umount2: Device or resource busy 5 umount: /udisk: device is busy
使用fuser命令，先确认有那些进程需要杀掉
1 [root@localhost /]# fuser -cu /udisk 2 /udisk: 15060c(root)
其次向进程发出SIGKILL信号
1 [root@localhost /]# fuser -ck /udisk 2 /udisk: 15060c