I'm seeing similar.
The install from DVD, BT5R1-GNOME-32.iso to be precise, seems to install without errors.
When I try boot into the system, all I get is a black screen with no text and a blinking cursor.
I've tried mounting everything to nothing to the 4GB flash drive and also to the 16GB flash drive.
So I've tried putting only / on the 4GB SSD and the rest on the 16GB SSD.
I've tried putting / and /boot on the 4GB SSD and the rest on the 16GB SSD.
So far I haven't found a solution to this problem.
Any ideas would be appreciated.