Thanks to all who replied on and off list. It looks like I took a big step forward on this today. We are in the process of transitioning our cluster to jumbo frames, but not all parts of it have moved over yet. In the main section of the kickstart file for these nodes, I used the "--mtu=9000" flag to the "network" directive, meaning that the nodes used jumbo frames during the installation. By removing that flag and then modifying the interface config files in the ks post section, I got all of the nodes to kickstart successfully using standard size frames and then come up into production using jumbo frames. 3 of the 48 nodes had SGE fail to start due to the network not being ready, but that's something I can handle.
I'll have another batch of 48 nodes ready next week -- hopefully this solution will work there as well. If not, I'll report back that the issue is still out there. Thanks again for bearing with me. -- Joshua Baker-LePain QB3 Shared Cluster Sysadmin UCSF _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf