Description of problem: Current warning message if you install the RDO netns enabled kernel is: "* Kernel package with netns support has been installed on host 192.168.102.222. Please note that with this action you are loosing Red Hat support for this host. Because of the kernel update host mentioned above requires reboot." Please rephrase this to: * The RDO kernel that includes network namespace (netns) support has been installed on host X. This is a community supplied kernel and is not officially supported by Red Hat. Installing this kernel on RHEL systems may impact your ability to get support from Red Hat. The second comment there: "Because of the kernel update host mentioned above requires reboot" The instructions on the Neutron-Quickstart advise users to yum update prior to running packstack and reboot. So, in many cases a reboot after running packstack is not necessary because the user did it already. packstack should check uname to see if the kernel running matches the kernel just installed, and recommend reboot only if really needed.