I've been having a few issues with this. I followed the guide here; https://ubuntu.com/download/raspberry-pi but it stopped, rather I got a black screen shortly after the ubuntu logo appears. I've tried various things, SDs and USBs alike, but both face the same issue. I'm thinking it might not be an issue with the disk image as it's sourced via raspberry pi installer from the internet, also tried with a manual .iso with the same issue. Is this a ubuntu issue or should I consult raspberry pi people?
The USB lights indicate that it's still being read/written but stays like that for hours with nothing from the pi.
Any assistance greatly appreciated! Thanks Rory