The following link at opensimulator.org will provide you with information on setting up groups V2. The information shows you how to configure and migrate from flotsam groups but does not show you how to setup groups for V2 for the first time.
Step 1: Visit V2 Groups – OpenSimulator to do the initial setup
Step 2: download the groups SQL template from here.
groups_import_to_robust.sql
Importing into robust database from server console
After downloading the above SQL file follow the following instructions. These instructions assume your robust server is using a database called robust.
Login to mysql:
mysql -u root -p
enter the password for mysql:
use robust;
source /location/groups_import_to_robust.sql;
The required tables for groups module V2 should now be created in the robust database ready to be used by the Robust server.
Importing the Groups V2 database template using adminer or phpmyadmin.
From adminer select the robust database.
Then click on IMPORT (Top left)
Select choose file
Select from your PC the groups_import_to_robust.sql you downloaded
Then click on EXECUTE
This will merge the Groups V2 template with the robust database.
Your Robust.exe / Robust.dll will start up correctly