I'm in charge of an upgrade from 7.1 to new hardware and I've found a big stopper in the project.
There are two appliances in production running 7.1 The customer bought new appliances and as expected, they come pre-installed with 8.3
Since the upgrade path from 7.1 is only to 8.1 I'm trying to install 8.1 with the DVD in the new appliances.
But when I boot from the DVD, the installer says there are no device(s) for installation (see attachment).
Any ideas of what could be done to solve this?