错误:umount: can't forcibly umount /mnt/nfs: Device or resource busy
解决:新手可能会遇到这个问题,解决办法很简单,回到开发板根目录,再umount一次;
即不能在当前目录下umount该目录
错误:umount: can't forcibly umount /mnt/nfs: Device or resource busy
解决:新手可能会遇到这个问题,解决办法很简单,回到开发板根目录,再umount一次;
即不能在当前目录下umount该目录