Nice! even better than booting through the reset function and hoping it will work, during install. The OS permanently on the USB stick also makes it easier to troubleshoot when things go wrong 
Perhaps I’ll get the terminal to serial to work also when I want to repurpose it (or another one) again, for now it is happily running Ubuntu server in the closet. Nice to know I’m not the only one who wanted to get this working 
Cheers!
