Why is it possible to "apt-get install ros-indigo-ros-base" on Raspbian?
I thought that Debian packages for ROS Indigo were not available on Raspbian. However, this Dockerfile does:
echo "deb http://packages.ros.org/ros/ubuntu trusty main" > /etc/apt/sources.list.d/ros-latest.list
and then
# install ros packages
RUN sudo apt-get update && sudo apt-get install -y \
ros-indigo-ros-core=1.1.4-0* \
ros-indigo-ros-base=1.1.4-0* \
&& sudo rm -rf /var/lib/apt/lists/*
and it seems to work just fine. There's even an image on Docker Hub and I was also able to replicate it in this modified Dockerfile which uses a different Raspbian base image.
How come this is possible? I thought I'd have to build from source.