Install ROS2

ROS2 Humble (Ubuntu 22.04)

Follow the official guide: https://docs.ros.org/en/humble/Installation/Ubuntu-Install-Debs.html

Quick summary:

# Set locale
sudo apt update && sudo apt install locales
sudo locale-gen en_US en_US.UTF-8
sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
export LANG=en_US.UTF-8

# Setup sources
sudo apt install software-properties-common
sudo add-apt-repository universe
sudo apt update && sudo apt install curl -y
sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key \
  -o /usr/share/keyrings/ros-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] \
  http://packages.ros.org/ros2/ubuntu $(. /etc/os-release && echo $UBUNTU_CODENAME) main" \
  | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null

# Install
sudo apt update && sudo apt upgrade
sudo apt install ros-humble-desktop

# Source
echo "source /opt/ros/humble/setup.bash" >> ~/.bashrc
source ~/.bashrc

ROS2 Jazzy (Ubuntu 24.04)

Follow the official guide: https://docs.ros.org/en/jazzy/Installation/Ubuntu-Install-Debs.html

Quick summary:

# Set locale
sudo apt update && sudo apt install locales
sudo locale-gen en_US en_US.UTF-8
sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
export LANG=en_US.UTF-8

# Setup sources
sudo apt install software-properties-common
sudo add-apt-repository universe
sudo apt update && sudo apt install curl -y
sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key \
  -o /usr/share/keyrings/ros-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] \
  http://packages.ros.org/ros2/ubuntu $(. /etc/os-release && echo $UBUNTU_CODENAME) main" \
  | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null

# Install
sudo apt update && sudo apt upgrade
sudo apt install ros-jazzy-desktop

# Source
echo "source /opt/ros/jazzy/setup.bash" >> ~/.bashrc
source ~/.bashrc

Verify ROS2

ros2 run demo_nodes_cpp talker

In another terminal:

ros2 run demo_nodes_cpp listener

If messages are being received, ROS2 is working correctly.