There are two versions of the Automounter available:

  o automount:  Also called the "legacy" or "user space" automounter,
                ported from SunOS 4.X.  The legacy automounter supports
                NFS Version 2 over UDP ONLY (even on 11.x).  When it
                runs, you see a process named "automount" running.

  o AutoFS:  This is an older version of the Solaris AutoFS automounter.
             The AutoFS automounter supports NFS Version 2 and 3 over UDP
             and TCP.  When it runs, you see a process named "automountd"
             running, and a kernel helper process called "autofs_proc".
             The "automount" command is used to re-read and update the
             AutoFS configuration.  AutoFS is only available on 10.20 NFS
             patch versions since 1999.  It is available on all 11.x NFS
             patch levels.

The /etc/rc.config.d/nfsconf variable AUTOFS controls if the legacy
automounter is used (AUTOFS=0), or if the AutoFS is used (AUTOFS=1).  You
cannot run both versions simultaneously on the same host.  You can change
between the versions by stopping the nfs.client service, updating
nfsconf, and then restarting the nfs.client service.