After setting up the nfs server on ubuntu, use the development board to mount the nfs shared folder
mount -t nfs 191.168.0.200:/home/ssj/nfs /mnt
The following error is reported
mount.nfs: an incorrect mount option was specified
Solution:
mount -t nfs -o nolock,nfsvers=3,vers=3 191.168.0.200:/home/ssj/nfs /mnt
Added three parameters -o nolock,nfsvers=3,vers=3 to solve the problem