Ubuntu MATE pi image wont run. I want it to run on a pi 2, but the green light just stays lit. I also tried the imaged sd card on a pi B+ (just to test) and the green blinks 7 times.
I imaged the sd cards from the one available on raspberrypi.org with dd. This is far from my first time using
dd so I doubt that's the problem and both pis run rapsbian fine so there's no hardware problem.
Any way to get this to work?