rhui-installer command fails.

Issue

rhui-installer command fails.

# rhui-installer --rerun --remote-fs-server xx.xx.xx.xx:/export --rhua-hostname rhua.example.com --cds-lb-hostname lb.example.com

                WARN: Hostname provided with: --rhua-hostname rhua.example.com is not resolvable and must be for RHUI to functi>
                /root/.ssh/id_rsa_rhua Already exists
                Answers saved to file: /root/.rhui/answers.yaml