Some of the step is missing ~~~ (undercloud) [stack@16dcn ~]$ openstack overcloud export --config-download-dir ~/dcn0-central/config-download/ --stack dcn0-central --output-file ~/dcn-common/control-plane-export.yaml Exception occured while running the command Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/tripleoclient/command.py", line 32, in run super(Command, self).run(parsed_args) File "/usr/lib/python3.6/site-packages/osc_lib/command/command.py", line 41, in run return super(Command, self).run(parsed_args) File "/usr/lib/python3.6/site-packages/cliff/command.py", line 185, in run return_code = self.take_action(parsed_args) or 0 File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_export.py", line 93, in take_action clients.orchestration, stack, False, config_download_dir)) File "/usr/lib/python3.6/site-packages/tripleoclient/export.py", line 94, in export_stack with open(file, 'r') as ff: FileNotFoundError: [Errno 2] No such file or directory: '/home/stack/dcn0-central/config-download/group_vars/overcloud.json' ~~~ Reported by: schhabdi https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html/distributed_compute_node_and_storage_deployment/configuring_and_installing_the_hub_undercloud#annotations:4f272e08-942e-465a-bb83-941bf705d44f