Hi Brian,
thanks for your answer...!! Yes I'm following Armbian as well and
also worked with their images (Trusty)... works quite well, also hardware support
is excellent... the thing is, it's a Ubuntu Images with X installed (xfce).. the do-release-upgrade doesnt work as expected and even installing the ubunt-server packages via tasksel breaks something (dont have a screen to check whats going wrong), also deinstaling the X packages it's problematic. I think they are working on Xenial on Armbian. I hope also they are compiling a ubuntu-server image......
Give you an answer later and I'm going to re-check the forum for new answer.
I give you a message if I will find something.
Cheers