Big problem!

[don Paolo Benvenuto]

Since two weeks I have a big problem with my edubuntu ltsp installation.

All were working without problem, but the hd failed, and I have to
reinstall all the stuff.

Normally I mantain the server all the time swithced on. When I boot the
clients in the morning, almost all boot up, one or two don't boot and
they stop with an arror in the nfs mounting, so that the busybox shell
appears.

But if I switch the clients off and boot them again, almost all don't
boot, and stop with the nfs mounting problem.

I'm quite sure it's not a software problem, and I was wondering if it
could be a hardware one. So that I ask you: how do I realize what is
failing? What should I check?

My net wiring: the server's nic is connected to two 24-ports switches
(D-Link), and every switch is connected to 20 clients, 40 clients for
all.

When the problem appears, it affects the clients of both switches.

If a client doesn't boot, preferebly isn't one of the clients nearest to
server.

I repeat: the problem never had appeared before two weeks ago.

Anyone could help me with some hit? thank you!

-- 
don Paolo Benvenuto

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