Can you tell xnba to put you directly into a shell instead of discovery
mode (by modifying the chains table or setting 'nodeset [node]
runcmd=shell'), and then set a temp static IP and try some ping tests from
there?
I forget how far you have to get to drop to a shell. It seems I've had to
do that before in a shell though. For me on a previous occasion we had to
ensure the switch port was configured as an STP edge port and to make sure
that it communicated over the default VLAN.
Additionally sometimes stale DHCP IP assignment entries (with the MAC
address) were present in /var/lib/dhcpd.leases and we had to manually
delete them and restart dhcpd and try again (this was in a RHEL/Centos5
environment). I don't know why that would cause a timeout though. Were you
able to verify that the DHCP offer was coming from your xCat server in each
case and not (potentially) another DHCP server (rogue or otherwise)? I had
problems one time when I had two xCat servers/headnodes from two different
clusters cross talking and issuing IPs to newly provisioned nodes in the
other's cluster. Just a few ideas. You never know.
Josh Nielsen
On Mon, Oct 28, 2013 at 12:35 PM, Roland Santos <[email protected]>wrote:
> I'm getting a dhcp timeout issue with xnba/genesis. On discovery, a node
> will boot from the network and get the xnba image. It then times out
> getting network information via dhcp from within xnba. I'm running xCAT
> version 2.8.2, if it helps.
>
> On the xcat management server side, I see the initial sequence of DHCP
> requests coming from the node - DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, then
> DHCPACK. After the node downloads the xnba image and loads it, it then
> tries to do another dhcp request, where the request times out. On the xcat
> side, I see just a DHCPDISCOVER and a DHCPOFFER, but no further.
>
> Any help would be appreciated.
>
>
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