Should have replied to the main thread before, my b. Switching to centos 8 stream did the trick! I had to add the release44.rpm again, but after the ovirt-hosted-engine-setupp.noarch install, I was able to run `hosted-engine --deploy`! Inside that hosted-engine command, the setup is failing at "Detecting host timezone. Please provide FQDN you would like to use...". I did the default "enter", and it says: Failed to execute stage 'Environment customization': Empty strings are not supported! But I'll poke at it again tonight/tomorrow, just wanted to update here. I haven't had a chance to poke at that at ALL yet. I'm more-so curious if I'm on the right path for a single-machine install, and wanted to update you all on the CentOS fix. Thanks!