debian lenny nfs RPC Error

marv · 05-09-2010, 12:18 PM

I have a server running debian lenny on which im trying to set up nfs exports.

My problem is that every time I try to mount the nfs share from a client machine (another debian lenny box) I get

Code:

debian:/# mount -t nfs 192.168.86.200:/testmount /test
mount.nfs: mount to NFS server '192.168.86.200' failed: RPC Error: Program not registered

The line in /etc/exports is:

Code:

/testmount     192.168.86.0/255.255.255.0(rw)

exportfs -v gives:

Code:

/testmount 192.168.86.0/255.255.255.0(rw,wdelay,root_squash,no_subtree_check)

I have searched everywhere I can think of to try and find a solution to this problem but with no luck.

All the posts I have found talk about ensuring that portmap is installed, which it is, and starting the services in the right order (starting portmap first, then nfs server), which I have done.

I don't fully understand portmap, all I understand is that it maps rpc ports to unix ports. How does a daemon register with portmap? Should it just do it automatically?

On the server, the output of rpcinfo -p is:

Code:

   program vers proto   port
    100000    2   tcp    111  portmapper
    100011    1   udp    809  rquotad
    100011    2   udp    809  rquotad
    100011    1   tcp    810  rquotad
    100011    2   tcp    810  rquotad
    100000    2   udp    111  portmapper
    100024    1   udp  43432  status
    100024    1   tcp  43318  status

Is there anything else that could be configured incorectly to stop the nfs server from registering with portmap?

Thanks.

AlucardZero · 05-09-2010, 12:28 PM

It does it automatically. Restart portmap, then start nfs-server (or nfsd or whatever it's named). Your rpcinfo (and the error message) state that the NFS server is not running.

marv · 05-09-2010, 12:49 PM

Thanks for the reply.

I have done this a few times today, just tried it again though...

stopped portmap, nfs-kernel-server, nfs-common

then started portmap, no errors

then started nfs-kernel-server, no errors:

Code:

Exporting directories for NFS kernel daemon....
Starting NFS kernel daemon: nfsd.

then started nfs-common, no errors:

Code:

Starting NFS common utilities: statd idmapd.

However, nfs does not show up in a process list which im assuming it should if it is running, even though it didn't show an error.

AlucardZero · 05-09-2010, 01:43 PM

Ok, nfs-kernel-server is indeed the server init script. What kernel version are you running? You should have a few [nfsd] processes running on the server. What does `/sbin/showmount -e serverip` say, both on the server and on the client? Do you have a firewall running on either?

marv · 05-11-2010, 07:20 AM

I have now discovered that the problem is that the kernel does currently not support nfs.

The Debian install is provided by a dedicated hosting company who have obviously removed support for it. They had also commented out a section of the /etc/init.d/nfs-kernel-server script which checked for kernel support.

When I uncommented it, the script returns an error, as it should.

Thanks for your help anyway!