Update to Ubuntu 26 and Mariadb 11 Shutdown current Container cd Cacti docker compose down cd .. mv Cacti/docker-compose.yml Cacti/docker-compose.bak mv Cacti Cacti-old git clone -b ubuntu_26.04 https://github.com/Its-egner/Cacti.git mv Cacti-old/cacti_db Cacti mv Cacti-old/cacti_log Cacti mv Cacti-old/cacti_plugins Cacti mv Cacti-old/cacti_rra Cacti Copy your Passwords from Cacti-old//docker-compose.bak to Cacti/docker-compose.yml cd Cacti Edit docker-compose File, change Passwords! and bring Container up. docker compose up -d