My first install was on the same system but without any hard drives and it had the same effect. I added the two hard drives noted for the second install because I was wanted to make sure that the USB drive was being detected differently than a traditional HDD.
Between the two installs I accidentally unplugged the USB drive while it was formatting and had to take it to another machine to remove all partitions and data as it was not being recognized anymore due to having corrupted partitions, so I know that at least for the second install it was completely blank.
