umount 提示 is busy 解决方法 （In some cases useful info about processes that use the device is f）

umount 提示 is busy 解决方法 （In some cases useful info about processes that use the device is f）

mount: /opt/k8s: target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))

isof /opt/k8s 或 fuser -m -v /opt/k8s

kill -9 2812 即可