I discovered today during an installation of FreeNAS 8.0 (http://www.freenas.org/) on a VMware ESX virtual machine that FreeNAS 8 does not include pv drivers for ParaVirtual disks. So if you happen to get stuck at the following screen during install (when you try to choose option 1) it is because no disks were detected.
Also note that the install script for this is in
/etc/install.sh – I had to read through it a bit to see exactly what/why this was doing nothing when I tried choosing option 1. It was confirmed in