Hi, I have successfully solved the following problem. The cause of the problem is a network problem： Solved problem： =================================================== I according to https://docs.starlingx.io/deploy_install_guides/r4_release/virtual/controlle..., Task [common/push-docker-images: Download images and push to local registry] runs for 40 minutes without results. I didn't have enough patience to continue waiting and stopped the `ansible-playbook` task. Could you please help me? Thanks. Brief Description ----------------------------------- My Environment: 1. I install StarlingX in Virtual Environment. 2. StarlingX version: R4.0 3. stx-tools: master 4. docker.elastic.co network delay: about 230ms (using ping docker.elastic.co) 5. Steps: a. Set system password succesfully. b. Run following script in console: export CONTROLLER0_OAM_CIDR=10.10.10.3/24 export DEFAULT_OAM_GATEWAY=10.10.10.1 sudo ip address add $CONTROLLER0_OAM_CIDR dev eth1000 sudo ip link set up dev eth1000 sudo ip route add default via $DEFAULT_OAM_GATEWAY dev eth1000 c. cp /usr/share/ansible/stx-ansible/playbooks/host_vars/bootstrap/default.yml $HOME/localhost.yml d. modify and add following informations in $HOME/localhost.yml: system_mode: duplex external_oam_node_0_address: 10.10.10.3 external_oam_node_1_address: 10.10.10.4 admin_password: Password123$%^ ansible_become_pass: Password123$%^ docker_no_proxy: - 1.2.3.4 - 5.6.7.8 e. ansible-playbook /usr/share/ansible/stx-ansible/playbooks/bootstrap.yml Issues: 1. When I run `ansible-playbook /usr/share/ansible/stx-ansible/playbooks/bootstrap.yml`, the task `[common/push-docker-images: Download images and push to local registry]` will always stay here for a long time. 2. I don’t know if the download speed of docker is too slow, or if I need to wait longer, maybe 2 hours or 5 hours. =============================================================== Best regards with you, Longqian