RobotHubLab workspace

ROS 2 Lyrical lab 01 ยท 45 min

Install ROS 2 Lyrical

Prepare Ubuntu 26.04 and install the supported ROS 2 desktop packages.

Before you start

  • Ubuntu 26.04 (Resolute), 64-bit
  • An administrator account
  • A reliable internet connection

Files you will touch

  • /opt/ros/lyrical/
  • ~/.bashrc

Step 1

Set up

sudo apt update
sudo apt install ros-lyrical-desktop ros-dev-tools python3-colcon-common-extensions
source /opt/ros/lyrical/setup.bash
echo $ROS_DISTRO

Step 2

Create the file

# Add this only after the one-time source command works.
echo 'source /opt/ros/lyrical/setup.bash' >> ~/.bashrc

Step 3

Build, run and inspect

ros2 run demo_nodes_cpp talker
# In a second sourced terminal:
ros2 run demo_nodes_py listener

Proof that it works

  • echo $ROS_DISTRO prints lyrical
  • The talker publishes numbered messages
  • The listener receives the same messages

Recovery notes

  • If ros2 is not found, source /opt/ros/lyrical/setup.bash in that terminal.
  • If the package cannot be located, confirm the machine is Ubuntu 26.04 and the ROS apt source is configured from the official installation guide.
ROS 2 Lyrical installation