Hi There, I am trying to install OpenStack using TripleO quickstart script on a single server. I am running following error and the script stops. Can you please tell me what is going on? Thanks,PK TASK [setup/undercloud : Set_fact for undercloud ip] ***************************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/libvirt/setup/undercloud/tasks/main.yml:180Saturday 04 June 2016  11:22:33 -0500 (0:01:35.278)       0:08:30.041 ********* ok: [192.168.0.24] => {"ansible_facts": {"undercloud_ip": "192.168.23.37"}, "changed": false} TASK [setup/undercloud : Wait until ssh is available on undercloud node] *******task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/libvirt/setup/undercloud/tasks/main.yml:184Saturday 04 June 2016  11:22:34 -0500 (0:00:01.249)       0:08:31.291 ********* ok: [192.168.0.24] => {"changed": false, "elapsed": 0, "path": null, "port": 22, "search_regex": null, "state": "started"} TASK [setup/undercloud : Add undercloud vm to inventory] ***********************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/libvirt/setup/undercloud/tasks/main.yml:192Saturday 04 June 2016  11:22:36 -0500 (0:00:01.610)       0:08:32.902 ********* creating host via 'add_host': hostname=undercloudchanged: [192.168.0.24] => {"add_host": {"groups": ["undercloud"], "host_name": "undercloud", "host_vars": {"ansible_fqdn": "undercloud", "ansible_host": "undercloud", "ansible_private_key_file": "/root/.quickstart/id_rsa_undercloud", "ansible_ssh_extra_args": "-F \"/root/.quickstart/ssh.config.ansible\"", "ansible_user": "stack"}}, "changed": true} TASK [setup/undercloud : Generate ssh configuration] ***************************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/libvirt/setup/undercloud/tasks/main.yml:202Saturday 04 June 2016  11:22:36 -0500 (0:00:00.687)       0:08:33.590 ********* changed: [192.168.0.24 -> localhost] => {"changed": true, "checksum": "cf7f920ffcaffc8087068797ced179782cb2c167", "dest": "/root/.quickstart/ssh.config.ansible", "gid": 0, "group": "root", "md5sum": "92a43943cbdc33b719c87d7f51e5c66a", "mode": "0644", "owner": "root", "size": 813, "src": "/root/.ansible/tmp/ansible-tmp-1465057357.19-199551301253928/source", "state": "file", "uid": 0} TASK [setup/undercloud : Configure Ironic pxe_ssh driver] **********************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/libvirt/setup/undercloud/tasks/main.yml:211Saturday 04 June 2016  11:22:38 -0500 (0:00:01.813)       0:08:35.404 ********* fatal: [192.168.0.24]: UNREACHABLE! => {"changed": false, "msg": "[Errno -2] Name or service not known", "unreachable": true} PLAY [Rebuild inventory] ******************************************************* TASK [setup] *******************************************************************Saturday 04 June 2016  11:22:39 -0500 (0:00:01.065)       0:08:36.469 ********* ok: [localhost] TASK [rebuild-inventory : Ensure local working dir exists] *********************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/rebuild-inventory/tasks/main.yml:1Saturday 04 June 2016  11:22:47 -0500 (0:00:07.951)       0:08:44.421 ********* ok: [localhost -> localhost] => {"changed": false, "gid": 0, "group": "root", "mode": "0755", "owner": "root", "path": "/root/.quickstart", "size": 4096, "state": "directory", "uid": 0} TASK [rebuild-inventory : rebuild-inventory] ***********************************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/rebuild-inventory/tasks/main.yml:11Saturday 04 June 2016  11:22:48 -0500 (0:00:01.076)       0:08:45.497 ********* changed: [localhost] => {"changed": true, "checksum": "41c0b5fb2439a528d0b0c6b0f979d3159c3446ca", "dest": "/root/.quickstart/hosts", "gid": 0, "group": "root", "md5sum": "0358d6b476bc5993eb9f31c57d234be6", "mode": "0644", "owner": "root", "size": 410, "src": "/root/.ansible/tmp/ansible-tmp-1465057369.05-223284897662661/source", "state": "file", "uid": 0} PLAY [Install undercloud and deploy overcloud] ********************************* TASK [tripleo/undercloud : include] ********************************************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/tripleo/undercloud/tasks/main.yml:1Saturday 04 June 2016  11:22:50 -0500 (0:00:01.630)       0:08:47.130 ********* included: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/tripleo/undercloud/tasks/create-scripts.yml for undercloud TASK [tripleo/undercloud : Create undercloud configuration] ********************task path: /root/.quickstart/usr/local/share/tripleo-quickstart/roles/tripleo/undercloud/tasks/create-scripts.yml:3Saturday 04 June 2016  11:22:51 -0500 (0:00:01.053)       0:08:48.184 ********* fatal: [undercloud]: UNREACHABLE! => {"changed": false, "msg": "[Errno -2] Name or service not known", "unreachable": true} PLAY RECAP *********************************************************************192.168.0.24               : ok=92   changed=46   unreachable=1    failed=0   localhost                  : ok=10   changed=4    unreachable=0    failed=0   undercloud                 : ok=1    changed=0    unreachable=1    failed=0    Saturday 04 June 2016  11:22:53 -0500 (0:00:01.470)       0:08:49.655 ********* =============================================================================== TASK: setup/undercloud : Get undercloud vm ip address ------------------ 95.28sTASK: setup/undercloud : Resize undercloud image (call virt-resize) ---- 93.98sTASK: setup/undercloud : Upload undercloud volume to storage pool ------ 66.46sTASK: setup/undercloud : Get qcow2 image from cache -------------------- 58.57sTASK: setup/undercloud : Copy instackenv.json to appliance ------------- 14.46sTASK: setup ------------------------------------------------------------- 8.64sTASK: setup/undercloud : Inject undercloud ssh public key to appliance --- 8.36sTASK: setup ------------------------------------------------------------- 8.32sTASK: setup ------------------------------------------------------------- 7.95sTASK: setup/undercloud : Perform selinux relabel on undercloud image ---- 4.34sTASK: setup/overcloud : Check if overcloud volumes exist ---------------- 2.88sTASK: environment/setup : Whitelist bridges for unprivileged access ----- 2.73sTASK: environment/setup : Start libvirt networks ------------------------ 2.61sTASK: setup ------------------------------------------------------------- 2.48sTASK: environment/teardown : Undefine libvirt networks ------------------ 2.46sTASK: parts/libvirt : Install packages for libvirt ---------------------- 2.46sTASK: provision/teardown : Remove non-root user account ----------------- 2.43sTASK: teardown/nodes : Delete baremetal vm storage ---------------------- 2.39sTASK: setup/undercloud : Start undercloud vm ---------------------------- 2.36sTASK: environment/setup : Mark  libvirt networks as autostarted --------- 2.34s[root@sightApps65 ostest]#