Odroid xu4, Ubuntu, Mavproxy auto run problem

Hi all, I have just received an Odroid xu4 for a companion computer for the Pixhawk and am exited to develop some code.
First off this is a very exiting time with the launch of DroneKit.
All new to me, both Linux and python.
I followed all the instructions on the wiki, have to add the following to the wiki:-

sudo apt-get purge modemmanager sudo apt-get install python-dev

I have installed all the software and mavproxy is working however, I can’t get mavproxy to run automatically. I have added the below to the end of .bashrc

if screen -list | grep -q "MavProxy"; then echo "MavProxy is already running" else cd /home/odroid screen -S MavProxy -d -m -s /bin/bash mavproxy.py --master=/dev/ttyUSB0 --baudrate 1500000 --out 192.168.1.11:14550 --aircraft MyCopter fi

MavProxy only starts once I login and open a terminal. It then starts running.
Any advice to how to get around this would be most appreciated.
Also, there is a Ubuntu server image here, http://odroid.in/ubuntu_14.04lts/
File name: ubuntu-14.04lts-server-odroid-xu3-20150725.img.xz
This should speed up the system as it is lighter, is this a good choice if no GUI is required?
I will try it and post back my findings.

Thanks
Anthony
ps. thanks to the development team.

Please help me out i cant get past mavproxy.py --master=/dev/ttyUSB0…ect to talk to my pixhawk via XU4/UART Cable. what is the proper code?