For interested testers there is a CentOS 6.0 to OpenNode 6.0 (beta) conversion script available.

Here are the instructions:

OpenNode 6.0 bootstrap from CentOS 6.0
---------------------------------------
* Install minimal default CentOS 6 system with http://ftp.estpak.ee/pub/centos/6.0/isos/x86_64/CentOS-6.0-x86_64-minimal.iso
* Bootstrap to OpenNode 6.0 with centos6-to-opennode6.sh script

yum install -y wget
wget -q -O - http://opennode.activesys.org/download/centos6-to-opennode6.sh | bash

Notes:
Currently OpenNode 6.0 beta is a CentOS 6 base system with RHEL6 vzkernel providing RHEL6 KVM and OpenVZ stacks - OpenNode CLI Utility (OCU) is still the same as of OpenNode 1.1 - we hope to finish some new OCU features by official OpenNode 6.0 release.