Okay trying to generate an iso from the doc, the command ***************** Download packages ***************** #. Inside the Docker container, enter the following commands to download the required packages to populate the CentOS mirror repository: :: cd $MY_REPO_ROOT_DIR/stx-tools/centos-mirror-tools && bash download_mirror.sh fails, i see nothing in the docs on this... now never having used redhat, im a bit lost, a google search turned up subscription-manager register --username <username> --password <password> --auto-attach which is did, however im getting this below, how to proceed ?? Thanks This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.