When booting up, the script /etc/init.d/nfs reports:
Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ] Starting rpcidmapd Starting NFS4 idmapd: Error: RPC MTAB does not exist. Starting rpc.svcgssd
What is RPC MTAB?
Not sure if this is causing my NFS client problems or not. Each client reports 'permission denied' when trying to mount NFS shares.
You need to have the sunrpc module loaded which mounts the rpc_pipes filesystem.
grep -v '^#' /proc/mounts | awk '{ if ($3 ~ /^rpc_pipefs$/ ) print $2}'
should give you the following:
/var/lib/nfs/rpc_pipefs
If not, check that your sunrpc module is loading correctly. Try loading it manually,
modprobe sunrpc
-- Greg