Kb238

Emulab FAQ: Testbed Operations: What can cause NFS mount failures to fs/ops?

> > ...
> > *** Giving up on pc131 - it's been 7 minute(s).
> > Tail of pc131 console:
> > pc131:     WARNING: Could not /bin/mount -o vers=2,udp
> > fs.emulab.net:/users/rricci on /users/rricci: No such file or
> > directory.
> > pc131:   Mounting fs.emulab.net:/users/barb on /users/barb.
> > pc131: mount: RPC: Timed out.
> > ...
>
> When mountd was restarted it wasn't set to listen on port 900, which we
> do for some reason.  I've restarted it with `mountd -r -p 900`.

We do it so that we don't have to worry about which of the 100s of ports SUN-RPC might choose for it (and thus have to open gaping holes in the firewall to accomodate). This is setup in /etc/rc.conf, but if we start it ourselves, we have to remember to specify the port.