maverick nis autofs idmapd

From file /etc/init/idmapd.conf
# rpc.idmapd is the NFSv4 ID <-> name mapping daemon. It provides
# functionality to the NFSv4 kernel client and server, to which it
# communicates via upcalls, by translating user and group IDs to names, and
# vice versa.

Now:
Add

service idmapd start
to /etc/rc.local

Alternatively, one may put
NEED_IDMAPD=yes
in the file
/etc/default/nfs-common
(I have not tested this).