I am not sure if this helps:
I would like to try it on myself but I am still trying on CentOS as it is
easier and safer, I don't want to make Red Hat angry if I register
something by mistake and they thought I am trying to use my license to
patch my system illegally, I am not sure yet how Red Hat control the
patching if it allows Spacewalk to download RHEL rpms, and then Spacewalk
Server to spread RPMs to other systems.
In my case I tried to install Spacewalk server on CentOS.
this may help too:
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