Upgrade debian main version
Upgrade debian main version update $ apt-get update && apt-get upgrade backup sources.list $ cp /etc/apt/sources.list /etc/apt/sources.list.bak replace `stretch` to `buster` of `/etc/apt/sources.list` $ sed -i 's/stretch/buster/g' /etc/apt/sources.list run upgrade $ apt-get update && apt-get upgrade run dist upgrade $ apt-get dist-upgrade $ reboot $ lsb_release -a clean: $ apt-get autoremove