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Ok I got the nfs userspace server running rock solid. What I did was share out the /home directory and set up NIS, so now the clients can log in and have all their files regardless of the system they log in to. problem is GNOME requires nfslock, so I had to switch to the kernel server.
The kernel server starts up fine, but when I mount the /home directory on the client it just dies. /var/log/messages doesn't show anything.
So I mount the directory on the client. When I unmount I get this message:
Bad UMNT RPC: RPC: Unable to receive; errno = Connection refused
and then when I try to mount it again:
mount: RPC: Unable to receive; errno = Connection refused
But if I go to the server, type in /etc/init.d/nfs-kernel-server start, then the client can mount the directory again. Its very strange. It doesn't help much that the kernel nfs doesn't seem to put out any kind of error messages, at least as far as I can see. So I don't know where to begin on this one.
I tried turning off the firewall with the same result.
Portmapper must be running since I can mount the nfs filesystem on the client and it works. But I have to /etc/init.d/nfs-kernel-server restart on the server everytime I want to mount and unmount anything on the client.
I tried /etc/init.d/portmap restart and it restarted fine but I still have the same problem.