I'm unable to get much past the "boot:" prompt in the installer. The panic appears to be in powernowk8_init which according to http://rhn.redhat.com/errata/RHSA-2008-0612.html has a recently-fixed null-pointer dereference. That errata is from August 4; the latest CentOS install ISOs are from June. I tried the agp=off suggestion from e.g. http://www.centos.org/modules/newbb/viewtopic.php?topic_id=13512 with no success. Is there a good way to proceed here? Will there be new install media with the more recent kernel?