Hi ski522, thanks for the response. I tried your suggestion. On executing line 3 I get the following output:
~ $ /etc/init.d/nfs-common restart
[ ok ] Stopping NFS common utilities: idmapd statd.
[....] Starting NFS common utilities: statd/etc/init.d/nfs-common: line 134: 1954 Segmentation fault /usr/sbin/rpcinfo -p > /dev/null 2>&1
[warn] Not starting: portmapper is not running ... (warning).