.bashrc: https://gist.github.com/tik0/0c6d1598d9dbcac66d4203dcfff6041d Errata: 1. local writable folder can be mounted under '/media/localdisk/data' instead of '/media/localdisk/userdata' 2. environment variables in .bashrc needs to be exported by writing 'export' in front of it 2.1 e.g. 'export GAZEBO_MASTER_URI="1:11345" target="_blank" rel="noreferrer noopener">http://127.0.0.1:11345"' instead of GAZEBO_MASTER_URI=1:11345" target="_blank" rel="noreferrer noopener">http://127.0.0.1:11345' 2.2. e.g. 'export ROS_MASTER_URI="http://$(hostname):11311"' instead of 'ROS_MASTER_URI="http://$(hostname):11311"'