NFS tarda mucho en montar en ubuntu

Tengo un server de nfs en debian. Cliente en ubuntu. En tiempo de buteo el cliente tarda mucho en montar el file system remoto. Corriendo cat /var/log/messages hay una linea que dice:

Mar 2 11:52:21 grendel kernel: [4294713.202000] nfs warning: mount version older than kernel
Mar 2 11:52:21 grendel kernel: [4294748.203000] portmap: server localhost not responding, timed out
Mar 2 11:52:21 grendel kernel: [4294748.203000] RPC: failed to contact portmap (errno -5).
Mar 2 11:52:21 grendel kernel: [4294783.203000] portmap: server localhost not responding, timed out
Mar 2 11:52:21 grendel kernel: [4294783.203000] RPC: failed to contact portmap (errno -5).
Mar 2 11:52:21 grendel kernel: [4294783.203000] lockd_up: makesock failed, error=-5
Mar 2 11:52:21 grendel kernel: [4294818.203000] portmap: server localhost not responding, timed out
Mar 2 11:52:21 grendel kernel: [4294818.203000] RPC: failed to contact portmap (errno -5).
Mar 2 11:52:21 grendel kernel: [4294820.176000] NET: Registered protocol family 1

Finalmente lo monta. Pero tarda mucho.
Leyendo el error vi que busca portmap en localhost asi que instale el paquete portmap en ubuntu y funciono. Era eso.