Installing on Ubuntu from source
Install from source requires that you download and compile the source code on your own.
Install bootstrap dependencies (Ubuntu):
$ sudo apt-get install python-rosdep python-rosinstall-generator python-wstool build-essential
If you have trouble installing the packages in the command above, make sure you have added the packages.ros.org debian repository to your apt source lists as described starting here: groovy/Installation/Ubuntu#groovy.2BAC8-Installation.2BAC8-Sources.Setup_your_sources.list
Next ensure rosdep has been initialized:
$ sudo rosdep init $ rosdep update
Start by building the core ROS packages.
Building the catkin Packages
ROS is in the process of converting to a new build system, catkin, but not all of the packages have been converted and the two build systems cannot be used simultaneously. Therefore it is necessary to build the core ROS packages first (catkin packages) and then the rest.
Create a catkin Workspace
In order to build the core packages, you will need a catkin workspace. Create one now:
$ mkdir ~/ros_catkin_ws $ cd ~/ros_catkin_ws
Next we will want to fetch the core packages so we can build them. We will use wstool for this. Select the wstool command for the particular variant you want to install:
$ rosinstall_generator desktop-full --rosdistro groovy --deps --wet-only > groovy-desktop-full-wet.rosinstall $ wstool init -j8 src groovy-desktop-full-wet.rosinstall
$ rosinstall_generator desktop --rosdistro groovy --deps --wet-only > groovy-desktop-wet.rosinstall $ wstool init -j8 src groovy-desktop-wet.rosinstall
ROS-Comm: (Bare Bones) ROS package, build, and communication libraries. No GUI tools.
$ rosinstall_generator ros_comm --rosdistro groovy --deps --wet-only > groovy-ros_comm-wet.rosinstall $ wstool init -j8 src groovy-ros_comm-wet.rosinstall
This will add all of the catkin or wet packages in the given variant and then fetch the sources into the ~/ros_catkin_ws/src directory. The command will take a few minutes to download all of the core ROS packages into the src folder. The -j8 option downloads 8 packages in parallel.
In addition to the 3 variants above, more are defined in REP 131 such as robot, perception, etc. Just change the package path to the one you want, e.g., for robot do:
$ rosinstall_generator robot --rosdistro groovy --deps --wet-only > groovy-robot-wet.rosinstall $ wstool init -j8 src groovy-robot-wet.rosinstall
Before you can build your catkin workspace you need to make sure that you have all the required dependencies. We use the rosdep tool for this:
$ rosdep install --from-paths src --ignore-src --rosdistro groovy -y
This will look at all of the packages in the src directory and find all of the dependencies they have. Then it will recursively install the dependencies.
The --from-paths option indicates we want to install the dependencies for an entire directory of packages, in this case src. The --ignore-src option indicates to rosdep that it shouldn't try to install any ROS packages in the src folder from the package manager, we don't need it to since we are building them ourselves. The --rosdistro option is required because we don't have a ROS environment setup yet, so we have to indicate to rosdep what version of ROS we are building for. Finally, the -y option indicates to rosdep that we don't want to be bothered by too many prompts from the package manager.
After a while (and maybe some prompts for your password) rosdep will finish installing system dependencies and you can continue.
Building the catkin Workspace
Once it has completed downloading the packages and resolving the dependencies you are ready to build the catkin packages. We will use the catkin_make_isolated command because there are both catkin and plain cmake packages in the base install, when developing on your catkin only workspaces you should use catkin/commands/catkin_make.
$ ./src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release
Note: You might want to select a different CMake build type (e.g. RelWithDebInfo or Debug, see http://cmake.org/cmake/help/v2.8.12/cmake.html#variable:CMAKE_BUILD_TYPE).
Note: The default catkin installation location would be ~/ros_catkin_ws/install_isolated, if you would like to install some where else then you can do this by adding the --install-space /opt/ros/groovy argument to your catkin_make_isolated call.
For usage on a robot without Ubuntu, it is recommended to install compiled code into /opt/ros/groovy just as the Ubuntu packages would do. Don't do this in Ubuntu, as the packages would collide with apt-get packages. It is also possible to install elsewhere (e.g. /usr), but it is not recommended unless you really know what you are doing.
Please see REP 122: Filesystem Hierarchy Layout for more detailed documentation on how the installed files are placed.
Note: In the above command we are running the catkin_make_isolated command from the catkin source folder because it has not been installed yet, once installed it can be called directly.
Now the packages should have been installed to ~/ros_catkin_ws/install_isolated or to wherever you specified with the --install-space argument. If you look in that directory you will see that a setup.bash file have been generated. To utilize the things installed there simply source that file. Lets do that now before building the rest of ROS:
$ source ~/ros_catkin_ws/install_isolated/setup.bash
Build the rosbuild Packages
Now that you have the catkin ROS packages built and sourced, you can build any of the packages and stacks using the rosbuild build system.
Create a rosbuild workspace
Note: You do not need to do this part of the installation for the ROS-Comm: (Bare Bones) variant as it does not contain any rosbuild packages in it.
$ mkdir ~/ros_ws $ cd ~/ros_ws $ rosws init . ~/ros_catkin_ws/install_isolated
Note that we are pointing the ROS workspace to the catkin install location that we built in the previous step. This allows the ROS workspace to always source the catkin install location environment before you use the ROS workspace.
Download ROS Stacks
Now we need to get the dry (rosbuild) components of the variant you chose before. Use the corresponding command for your variant to do this:
Desktop-Full Install: 2d/3d simulators, navigation, robot models and several tutorial stacks
$ rosinstall_generator desktop-full --rosdistro groovy --deps --dry-only > groovy-desktop-full-dry.rosinstall $ rosws merge groovy-desktop-full-dry.rosinstall
$ rosinstall_generator desktop --rosdistro groovy --deps --dry-only > groovy-desktop-dry.rosinstall $ rosws merge groovy-desktop-dry.rosinstall
Now this just setups your rosbuild workspace, you need to tell rosws to fetch the packages still:
$ rosws update -j8
Build the ROS Stack
Once this is done fetching the stack you can source this workspace and then build the stack:
$ source ~/ros_ws/setup.bash $ rosmake -a