I did a CenOS fresh install with the following steps for AIO:

yum -y update

cat /etc/redhat-release 

CentOS Linux release 7.1.1503 (Core) 

yum install http://rdoproject.org/repos/openstack-kilo/rdo-release-kilo.rpm

yum install epel-release

cd /etc/yum.repos.d/

curl -O https://repos.fedorapeople.org/repos/openstack/openstack-trunk/epel-7/rc2/delorean-kilo.repo

yum install openstack-packstack

setenforce 0

packstack --allinone

and got again:

Error: nmcli (1.0.0) and NetworkManager (0.9.9.1) versions don't match. Force execution using --nocheck, but the results are unpredictable.

But if I don't do a yum update and install AIO it finishes successfully and I can yum update afterwards.

So if nobody can reproduce this issue, then something is wrong with my base CentOS install, I'll try to install the latest CentOS from ISO now.

Thanks!
Arash





On Fri, May 1, 2015 at 12:42 AM, Arash Kaffamanesh <ak@cloudssky.com> wrote:
I'm installing CentOS with cobbler and kickstart (from centos7-mini) on 2 machines
and I'm trying a 2 node install. With rc1 it worked without yum update.
I'll do a fresh install now with yum update and let you know.

Thanks!
Arash



On Fri, May 1, 2015 at 12:23 AM, Alan Pevec <apevec@gmail.com> wrote:
2015-05-01 0:12 GMT+02:00 Arash Kaffamanesh <ak@cloudssky.com>:
> But if I yum update it into 7.1, then we have the issue with nmcli:
>
> Error: nmcli (1.0.0) and NetworkManager (0.9.9.1) versions don't match.
> Force execution using --nocheck, but the results are unpredictable.

Huh, again?! I thought that was solved after you did yum update...
My original answer to that is still the same "Not sure how could that
happen, nmcli is part of NetworkManager RPM."
Can you reproduce this w/o RDO in the picture, starting with the clean
centos installation? How are you installing centos?

Cheers,
Alan