I am using Linux plnx_aarch64 4.9.0-xilinx-v2017.1.
I tried to mount a remote file system via mount, but received the following error...
mount -t nfs 22.214.171.124:/export /mnt
mount: wrong fs type, bad option, bad superblock on 126.96.36.199:/export,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
However, there is no helper program.
You need/want nfs-utils for mounting nfs filesystems on Linux.
Also note that NFS requires a port-mapper (rpcbind) on the client too.
Hope this helps,