Assumming you aren't familiar with HP-UX, I'll give you
a break down of how to fix it (I'm assuming that you
can't access the machine because it doesn't complete the
boot):

1.  Boot the machine, hit esc to stop it from autobooting.
2.  Boot the machine into the ISL... "boot pri isl" should
    work, or refer to your documentation (depends on the
    model number)
3.  At the ISL prompt, type "hpux -is boot".  This will
    boot you into system administration mode, without
    starting networking and multi-user.
4.  Edit the file "/etc/rc.config.d/nfsconf" with vi and
    change the line AUTO_MOUNTER=1 to =0.
5.  Use the command "reboot" to restart the machine and
    let it come all the way up.

NOTE:  If this doesn't fix the problem, you can repeat steps
1-4 and change the line "NFS_CLIENT=1" to =0.  (now the NFS
client isn't even starting).

After this, you can trace the cause of the problem (probably
a hard NFS mount) and disable or change it.

Steve Kuervers
Systems Engineer
Janus Simulation Centre (DND)
skuer...@compusmart.ab.ca