The system will then continue into a live environment. If the config importer was used previously on an existing installation, the system will boot up with a fully functional setup, but will not overwrite the previous installation. Use this feature for safely previewing upgrades.[...]If you have used a DVD, VGA, Serial image you are by default able to start the installer using the user “installer” with password “opnsense”. On a previously imported configuration the password will be the same as root’s password.
