Comment 3 for bug 1889449

@Kleber - one fix which you could test is adding "^linux-raspi$" to file removal_blacklist.cfg in the extracted dist-upgrader tarball. So run "do-release-upgrade -d" then cancel the upgrade then cd to "/tmp/ubuntu-release-upgrader-$TMPDIR". In that folder make your changes to removal_blacklist.cfg then run "sudo ./focal".