debian mobian not bootable after 2025-04-05 upgrade

[biketool]

The installation was installed via a debian mobian-installer image close to a year ago.
There were over 600 packages to upgrade, previous upgrade was about 30 days prior.
The upgrade process took quite some time, done over ssh.
At least two times during this process, my network dropped and I restarted the upgrade.
The upgrade did finish without any errors.

When I attempt to boot now, the screen goes blank and this message appeared at the top of the screen.

Code:

[    3.010045] OF: graph: no port mode found in /12c0ff340000/typec-portc022

Then the Mobian logo appeared for a split second and disappeared.

The line above was still at the top of the screen. I've allowed the PPP to stay in this state for a couple of hours and nothing has happened.

I have access to the installation by booting into a micro sdcard (mobian) and mounting the main system. 

I'm wondering if any one has seen this message before. Can anyone give me an idea what it means and if there is a solution to this other than re-installing the system?

Thanks, any help is greatly appreciated.

if you have a pl2302 or similar USB->serial board or adapter you can make a 3.5mm trrs headphone port serial line terminal to watch the whole boot on your computer to the failure, or you can buy one in the store.  Just flip the correct paranoia switch on your PPp to get it working, this can be very useful in your case.