Updating ubuntu local server or main server
If you want to upgrade a Big Blue Button 1.0 (or earlier) server, we recommend to starting with a separate clean Ubuntu 16.04 64-bit server, install Big Blue Button 1.1 on it, and then transfer over existing recordings.
If you encounter difficulties with the installation, see for how to engage the Big Blue Button community reach out to companies that offer commercial support and hosting for Big Blue Button.
Before you type Why do we recommend a bare metal server?
Without HTTPS enabled some browsers (such as Chrome) will not let the use share their web cam or microphone.
Also, without HTTPS enabled, some browsers will complain about insecure content.
In short, on any server used in production, setup of a domain name and valid SSL certificate is a must.
We recommend installing Big Blue Button 1.1 on a new Ubuntu 16.04 64-bit server; specifically, one that does not already have web applications installed (such as plesk).
Such applications create subtle conflicts with the installation and running of Big Blue Button that are difficult to resolve.