ROS 2 Humble Hawksbill package not found
I have followed official guide on this link but apt cannot find Humble Hawksbill required packages.
The repository link on ros2.list is
deb [arch=amd64 signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu focal main
that seems correct, and the previous version was correctly installed.
Wasn't it released in May?
Even the method to build it from source on same link requires packages that aren't available on ubuntu universe and provided repository e.g. , python3-flake8-blind-except. Latest time that I have installed ROS building the sources was with ROS 1 Noetic, I haven't tried the previous method since the build procedure seems changed and I have preferred ask here before further attempts.
(Also, what about using a decent build automation tool to have consistent built packages release with various platforms especially Debian, OpenWRT and arm64 CPUs that are very popular for SBC based robots?)
OS: Kubuntu Focal Fossa 64 bit
