[root@k8s-node02 ~]# mount -t nfs 192.168.56.120:/app/grafana/data /mnt mount: wrong fs type, bad option, bad superblock on 192.168.56.120:/app/grafana/data, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try
dmesg | tail or so.
[root@k8s-node02 ~]# yum install nfs-utils -y
