Installer harvester-amd64.iso Help Needed

Hi, I cannot figure out how to install harvester. Installing harvester-amd64.iso on HP Proliant Gen8 is hanging at Loading hardware drivers.
The ISO I use is
https://github.com/rancher/harvester/releases/download/v0.1.0/harvester-amd64.iso

Are there any needed install option that are not documented?

Any hel pwould be very appreciated, thanks
Bob