Yeah I have to agree the whole setup is very unintuitive. I'm wrangling with the automated installer trying to POST a request to the answer file I specified and nginx is returning an HTTP 405 error then the installer falls over and dies. Like...
I think there is room for improvement in the docs as I too was tripped up by this.
The way I interpreted the docs was that I only needed to rebuild the ISO if I wanted to hardcode any settings, which I didn't as it was all being supplied by...