Portsdown 5 Installation

[NJ6E]

Hello,

I have been attempting to install Portsdown 5 from https://github.com/davecrump/portsdown5 and have run into a problem when Stage 2 installation begins. My setup is a Raspberry Pi 5 4GB with the DSI 7" touchscreen attached. The installation proceeds as expected until the end of Stage 1, when the installer reboots to begin Stage 2 installation. At that point, reboot begins, the screen backlight comes on, and then all apparent installation activity stops. There is no text on the screen and no LEDs on the Pi 5 flash to indicate activity. I have left it in this state for several hours, with no apparent activity. At that point I can log into the Pi via the terminal, and I note that the installation log does include a "Stage 2 started" entry.

Any ideas on how to proceed with the installation would be appreciated. The DSI touchscreen is nominally functionally equivalent to the official Raspberry Pi screen (V1), so I was wondering if the presence of this screen could be related to the problem.

Thanks and 73,
Stan NJ6E