Comment 8 for bug 1884748

Adding to my previous report I should have mentioned that libraspberrypi-bin does not exist and so can not be installed

root@rpi4-ubuntu:/etc/apt/sources.list.d# apt-get install libraspberrypi-bin
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libraspberrypi-bin is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libraspberrypi-bin' has no installation candidate