Raspbian GNU/Linux upgrade from Stretch to Raspbian Buster 10 - LinuxConfig.org

The upgrade from Raspbian Stretch to Raspbian 10 Buster is a relatively simple procedure. However, exercise caution, as there is always a chance to break the entire system. The fewer installed 3rd-party packages and services, the more likely you are able successfully to upgrade your Raspbian Linux system.
This is a companion discussion topic for the original entry at https://linuxconfig.org/raspbian-gnu-linux-upgrade-from-stretch-to-raspbian-buster-10