On Mon, 23 Nov 2009, David Groos wrote:
> I've attempted a Jaunty to Karmic LTSP server upgrade. Things weren't
> completely smooth but I was able to do the upgrade without too much
> problem. However, when I test boot a thin client, the screen goes to its
> regular point of the last line saying DHCP (at this point it usually grabs
> an image) but after less than .5 of a second it says: "PXE-E32: TFTP open
> timeout" then says, TFTP... (with the number of dots increasing slowly).
>
> Thanks Harry for the link to the page at
> http://ubuntuforums.org/showthread.php?t=1309835 I did what they
> recommended. TC still don't boot.
>
> Still no luck--thin clients don't want to boot. I plugged my laptop into
> the proper nic on the server and it gets an IP, so I think DHCP is working.
> Not sure where to look from here. Any ideas?
A couple of suggestions:
== Try Manual TFTP Download ==
Could you install a tftp client package (tftp, atftp, tftp-hpa) and try
downloading the images which the dhcp server is handing out?
You should be able to look in the dhcp config and work out what the correct
kernel and ramdisk images are, then download them with tftp (from a laptop
if possible, not from the server). This will verify that your clients can
actually download the TFTP image (that's what appears to be timing out).
== Watch tftp traffic on the server ==
You could also watch the tftp traffic on the server by running (on the
server):
sudo tcpdump -i eth0 'udp port 69'
(assuming eth0 is the interface which points at your thin clients, if not
change that). Then boot a thin client and see what packets go back and
forth. If you don't see requests, they're not getting to the server for
some reason. If you see requests and no responses, that might indicate
your tftp server is broken.
Let us know how you get on.
Gavin
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