[root@controller ~]# yum update [root@compute1 ~]# yum update [root@compute2 ~]# yum update [root@controller ~]# yum install centos-release-openstack-pike [root@controller ~]# yum updater [root@controller ~]# yum install openstack-packstack [root@controller ~]# packstack --gen-answer-file=/root/answers.txt [root@controller ~]# packstack --answer-file=/root/answers.txt--timeout=600 [root@controller ~]# source /root/keystonerc_admin [root@controller ~(keystone_admin)]#