In answer to my own question, the problem can be traced back to a software issue with the HP switch. By turning off LACP on all the ports, the timings work so that the installation continues. Bill Bill Wichser wrote: > There appears to be an issue with installation over an HP switch. Upon > bootup, the network driver resets twice which somehow never allows the > client to ask and therefore receive it's MAC address. > > This follows the RH bug : > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=110036 > > Installation via a directly attached cable to the head node works fine. > > > I have emailed the Beowulf list in hopes that the problem was in some > configuration of the switch but have recently come across this bug > report and it appears that the symptoms are the same. > > Are there any plans to roll these patches into CentOS 3.3 (x86_64) in > the near future? > > Thanks, > Bill > > _______________________________________________ > CentOS mailing list > CentOS at caosity.org > http://lists.caosity.org/mailman/listinfo/centos