解决不能 umount
执行
umount -f c6
报错
umount: /root/uml/c6: target is busy
执行
fuser -ck c6
报错
-bash: fuser: command not found
安装
apt install psmisc
执行
fuser -ck c6
umount c6
执行
umount -f c6
报错
umount: /root/uml/c6: target is busy
执行
fuser -ck c6
报错
-bash: fuser: command not found
安装
apt install psmisc
执行
fuser -ck c6
umount c6