I used to run the all-in-one of RDO 2 month ago (still Icehouse) . It ran ok to completion by :

packstack --answer-file=/root/openstack-answers.cfg

The file openstack-answers.cfg has a line : CONFIG_PROVISION_DEMO_FLOATRANGE=9.148.26.128/30

Currently when I run it and no matter what is the IP specified in the FLOATRANGE I get the following error :

ERROR : Error appeared during Puppet run: 9.148.26.125_provision_demo.pp Error: /Stage[main]/Main/Neutron_l3_ovs_bridge[9.148.26.128/28]: Could not evaluate: Execution of '/sbin/ip addr show 148.26.128/28' returned 255: Device "148.26.128/28" does not exist.

Any idea how to overcome it ? The FloatingRange specified is not used yet and will never be among the IPs that appear as the outcome of 'ip addr show '