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Installing Ubuntu with ROS + TIAGo Base AI

Description: This tutorial describes the steps needed to get a proper Ubuntu and ROS installation to have a system up and running for the TIAGo Base AI tutorials.

Tutorial Level: BEGINNER

Next Tutorial: Robots/tiago-base-ai/tutorials/installation/tiago_base_ai_tutorial_docker

Author: Thomas Peyrucain < thomas.peyrucain@pal-robotics.com >

Maintainer: Jordi Pages < jordi.pages@pal-robotics.com >

Source: https://github.com/pal-robotics/pmb3_tutorials.git

Ubuntu installation

In order to run the public simulation of TIAGo Base AI (PMB3) it is preferable to get a fresh installation of Ubuntu 20.04.5 LTS as follows

• wget http://releases.ubuntu.com/20.04/ubuntu-20.04.5-desktop-amd64.iso

Use this ISO to install a fresh Ubuntu OS in your development computer. Afterwards, you can proceed installing ROS as explained in the next section.

ROS installation

Set up ROS packages sources

In order to install the required ROS packages for running TIAGo Base AI's simulation first, as explained in ROS Noetic installation, it is required to include packages.ros.org in the debian sources:

• sudo apt update
  sudo apt install lsb-release # if you haven't already installed lsb-release
  sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'

The set up the required keys to access the debian sources:

• sudo apt install curl gnupg # if you haven't already installed curl or gnupg
  curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -

ROS packages installation

install use the following instruction

• sudo apt-get update
  sudo apt-get install git wget python3-rosinstall ros-noetic-desktop-full python3-catkin-tools python3-rosdep python-is-python3

Append the following command to ~/.bashrc to allow any console to use the catkin commands

• source /opt/ros/noetic/setup.bash

Source-based installation

Currently source-based installation is provided.

First of all, open a terminal and create an empty workspace:

• mkdir ~/pmb3_public_ws
  cd ~/pmb3_public_ws

Then run the following instruction in order to download common_public-noetic.rosinstall,pmb3_public-noetic.rosinstall and to clone all the required repositories within the workspace:

• wget https://raw.githubusercontent.com/pal-robotics/pal_mobile_base_docker/noetic-devel/common_public-noetic.rosinstall
  wget https://raw.githubusercontent.com/pal-robotics/pmb3_tutorials/noetic-devel/pmb3_public-noetic.rosinstall
  rosinstall src /opt/ros/noetic common_public-noetic.rosinstall
  rosinstall src /opt/ros/noetic pmb3_public-noetic.rosinstall

Then run this command to make sure that all dependencies are installed.

• sudo rosdep init
  rosdep update

Then you may run the following instruction to make sure that all dependencies referenced in the workspace are installed

• rosdep install -y --from-paths src --ignore-src --rosdistro noetic --skip-keys "speed_limit_node urdf_test ydlidar_ros_driver librealsense2-dev librealsense2-utils omni_drive_controller librealsense2-dkms node_doctor pal_filters pal_pcl pal_usb_utils pal_map_manager"

Then, you may proceed building the workspace:

• source /opt/ros/noetic/setup.bash
  catkin build -DCATKIN_ENABLE_TESTING=0 -j $(expr `nproc` / 2)

Once you compiled all packages and source the environment (source ~/pmb3_public_ws/devel/setup.bash) and it's all ready to go.