Building a snadbox ovirt environment on CentOS 7.5.1804

Install fails at Creating CA stage:

[ INFO  ] Configuring PostgreSQL
[ INFO  ] Creating CA
[ ERROR ] Failed to execute stage 'Misc configuration': [Errno 2] No such file or directory
[ INFO  ] Yum Performing yum transaction rollback
[ INFO  ] Stage: Clean up
          Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20180712081855-efeaj4.log
[ INFO  ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20180712082036-setup.conf'
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination
[ ERROR ] Execution of setup failed

/etc/pki/ovirt-engine missing several files after install (compared to our prod and test systems)

Did something change with the installation re. cert creation? Or am I missing something obvious?

[note: default answers to installation questions]

Thanks.