yeh probably worth a try. it seems on 18.04 you will use universe repo: https://docs.librenms.org/Installation/Installation-Ubuntu-1804-Nginx/
Some others experienced some issues when upgrading just for info Upgrade ubuntu 16.04 to 18.04 - DB Issue
yeh probably worth a try. it seems on 18.04 you will use universe repo: https://docs.librenms.org/Installation/Installation-Ubuntu-1804-Nginx/
Some others experienced some issues when upgrading just for info Upgrade ubuntu 16.04 to 18.04 - DB Issue