I am logged into Ubuntu as root:
Perform #apt-get install Nfs-kernel-server//install NFS service on Ubuntu
Perform #mkdir/root/nfs//Create a shared folder on Ubuntu
Perform #vi/etc/exports on Ubuntu
Add/root/nfs * (Rw,sync,no_root_squash,no_subtree_check) to the exports file
/root/nfs: The shared folder you just created
*: Allow all network segments to be accessed or use specific IP
RW: Clients hooking up this directory have read and write access to the shared directory
Sync: Data is written to memory and hard disk synchronously
No_subtree_check: The permissions of the parent directory are not checked.
No_root_squash:root users have full administrative access to the root directory.
Perform #/etc/init.d/rpcbind restart restart Rpcbind service on Ubuntu
Perform #/etc/init.d/nfs-kernel-server restart on Ubuntu to restart NFS Services
Note this may appear at this time: not Starting:portmapper was not running//restart Ubuntu system is good;
Perform #showmount-E on Ubuntu//Show shared directory description build Success
The Linux system on arm executes #mount-T nfs-o nolock 10.10.206.221:/root/nfs/mnt
Address of 10.10.206.221//ubuntu
At this point, you can see the contents of the Ubuntu/root/nfs directory under the/mnt directory of the arm Linux system!
Ubuntu14.04 and Tiny6410 Mount NFS service!