sparc64 nfs client locking: Operation not supported

[Joshua Lokken]

Hello,

I'm booting an UltraSparc machine with tftp over NFS.  The boot server is 
i386 running 5.4-PRERELEASE, the UltraSparc nfs root is 5.3-RELEASE.

On the server, I'm running:

mountd (-r)
nfsd (-u -t -n 4)
rpcbind
rpc.statd
rpc.lockd

The Ultra will boot fine, however, whenever I attempt to create an account,
set a passwd, etc (anything that requires a file lock), I get an error telling
me "Operation not supported".  Thus, I have only a root account with a
null password 8>0

rpcinfo(8) shows:

   program version(s) netid(s)                         service     owner
    100000  2,3,4     local,udp,tcp                    rpcbind     superuser
    100005  3,1       tcp,udp                          mountd      superuser
    100003  3,2       tcp,udp                          nfs         superuser
    100024  1         tcp,udp                          status      superuser
    100021  4,3,1,0   tcp,udp                          nlockmgr    superuser

and the Ultra kernel is built with:

options         BOOTP                # User bootp to obtain IP address/hostname
options         BOOTP_NFSROOT        # NFS mount root filesystem w/ bootp info
options         BOOTP_NFSV3          # NFSv3 for mount root
options         BOOTP_COMPAT         # Workaround for broken bootp daemons
options         BOOTP_WIRED_TO=hme0  # Use interface hme0 for BOOTP

I didn't find anything recent on the web to suggest that this shouldn't work;
I may have missed something in configuring the setup.  Any advice is welcome.

-- 
Joshua Lokken
Open Source Advocate