1.sudo apt-get install nfs-kernel-server

2.sudo apt-get install nfs-common

3.sudo vi /etc/exports

文字末尾新增

/root/porting_x210/rootfs/rootfs *(rw,sync,no_root_squash,no_subtree_check)

4.chmod 777 /root/porting_x210/rootfs/rootfs

5.sudo showmount -e 

           顯示 RPC:Program not registered

6.sudo exportfs -r 更新

7.sudo  showmount localhost -e   

            顯示 Export list for 192.168.3.114

             /root/rootfs *

8.重啟  /etc/init.d/nfs-kernel-server restart

9.本地測試  mkdir testnfs

mount -t nfs -o nolock 192.168.3.114:/root/rootfs /testnfs

可以進入testnfs目錄看到rootfs目錄裡的東西  說明成功

10.測試成功之後 解除安裝 umount /testnfs