mount: wrong fs type, bad option, bad superblock

[thomas Armstrong]

Hi.

Using Ubuntu 7.10 I want to mount a directory shared on a Fedora
machine with NFS.

On Fedora machine (fedoraserver):
* edited '/etc/exports' and added:
-----------
/home/mydir/       pc09(rw)
-----------
* /etc/rc.d/init.d/nfs restart

On Ubuntu machine (pc09)
* mkdir /home/john/server-mydir
* mount -o nfsvers=2 fedoraserver:/home/mydir /home/jonh/server-mydir
-o nfsvers=2

But I get this error message:
-------
mount: wrong fs type, bad option, bad superblock on fedoraserver:/home/mydir/,
       missing codepage or helper program, or other error
-------

'fedoraserver' does exist for 'pc09' and 'pc09' does exist for
'fedoraserver'. What am I doing wrong?

Thank you very much.