still problem in remote mount

[Lorenzo Campo]

Hi,
I still have the "Mount: RPC: Remote System Error - Connection Timed Out WARNING: directory 
fai/class not found." problem during the boot of the first client. You suggested me to check the 
NFS server and the connectivity, but everything seems to be ok.
As I understand, FAI is trying to mount the server directory "/usr/local/share/fai" on the 
client directory "/fai" but it can't for some reason. NFS server on the master node is up and 
running, I tried to export this (and other) directory on other machines than the first install 
node, and I succeded in each case, so NFS server works and exports right directories.
I tried to monitor UDP activity during the boot of the client (with tcpdump on port 2049, 
standard for NFS) and I saw in the end some "ERROR: no such file or directory" message (but I 
don't know what file or directory it refers), while in
/var/log/messages/, in the end of the file, there are these lines:

Nov 15 15:17:10 localhost kernel: device eth0 entered promiscuous mode
Nov 15 15:17:23 localhost kernel: device eth0 left promiscuous mode
Nov 15 15:17:40 localhost kernel: device eth0 entered promiscuous mode
Nov 15 15:17:52 localhost kernel: device eth0 left promiscuous mode
Nov 15 15:17:55 localhost kernel: device eth0 entered promiscuous mode
Nov 15 15:17:59 localhost kernel: device eth0 left promiscuous mode
Nov 15 15:22:01 localhost kernel: svc: unknown version (0)
Nov 15 15:22:29 localhost rpc.mountd: export request from 192.168.100.100
Nov 15 15:25:24 localhost rpc.mountd: authenticated mount request from nodo01.dsi.unifi.it:800 
for /usr/lib/f
ai/nfsroot (/usr/lib/fai/nfsroot)
Nov 15 15:26:33 localhost rpc.mountd: authenticated mount request from nodo01.dsi.unifi.it:800 
for /usr/lib/f
ai/nfsroot (/usr/lib/fai/nfsroot)
Nov 15 15:29:17 localhost kernel: device eth0 entered promiscuous mode
Nov 15 15:29:27 localhost kernel: device eth0 left promiscuous mode
Nov 15 15:29:39 localhost kernel: device eth0 entered promiscuous mode
Nov 15 15:30:06 localhost rpc.mountd: authenticated mount request from nodo01.dsi.unifi.it:800 
for /usr/lib/fai/nfsroot (/usr/lib/fai/nfsroot)
Nov 15 15:34:39 localhost kernel: device eth0 left promiscuous mode
Nov 15 15:54:24 localhost -- MARK --

So, it seems it can mount (or at least it says so) /usr/lib/fai/nfsroot, but no messages are for 
/usr/local/share/fai.
Any idea on how I could fix this problem?
I tried to find the exact point in the FAI scripts where FAI tries to do this particular remote 
mount, but I don't know where to look for. Maybe in the main script /usr/sbin/fai?
Thank you
Lorenzo Campo