fix mariadb doesnt change root password  (unix_socket plugin) https://mariadb.com/kb/en/authentication-plugin-unix-socket/ fix broken internal packages https://stackoverflow.com/questions/50157653/python3-pip-broken-since-system-update Ubuntu: Update all expired keys from Ubuntu key server in one command: sudo apt-key list | \ grep “expired: ” | \ sed -ne ‘s|pub .*/\([^ ]*\) .*|\1|gp’ | \ xargs -n1 sudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv-keys –python packages— pyinstaller  …