UPGRADE STEPS FOR UBUNTU 16.04--

After a quick web search, I pulled up the following steps:

Steps to upgrade Ubuntu 16.04 to 18.04

    1) Login to Ubuntu box.
    2) Patch current system by running sudo apt update && sudo apt upgrade.
    3) After reboot make sure either UFW firewall is temporarily disabled or TCP port 1022 is open.
    4) To upgrade Ubuntu 18.04 LTS from 16.04 LTS run sudo do-release-upgrade.

I'll try this and report my results.       --scryptr