Download ROS2-Humble

Step 1: Install Distrobox

Create a virtual container to install Ubuuntu 22.04

sudo dnf install distrobox #(Fedora)
sudo apt install distrobox #(Ubuntu)

Distrobox allows you to create a virtual machine to obtain Ubuntu 22.04 to install ROS2-humble. ROS2-humble is only available on Ubuntu 22.04, so we need to have Distrobox (if you don't have ubuntu 22.04)

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Step2: Create a virtual container

First we need to create a virtual container and enter this container

distrobox create --name container_name --image ubuntu:22.04
distrobox enter container_name

--image 22.04 because we would like to have an Ubuntu 22.04 operating system

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Step3: Download Ros2-Humble

Firstly, Configure the repository

sudo apt update && sudo apt install -y curl gnupg2 lsb-release
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 $(source /etc os-release && echo $UBUNTU_CODENAME) main" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null

Secondly, Install Ros2-Humble

sudo apt update
sudo apt install -y ros-humble-desktop

Finaly, Configure the repository

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

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Now ROS2-Humble is finaly installed! To test the downloading you can copied the following command:

ros2 run demo_nodes_cpp talker

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