Sometime we would like to have more than one admin user in gforge and this can be accomplished using the below step directly in gforge database

• Get user_id i.e value in id field from user table
• Add that id value in the site_roles table

Non-commercial version of Gforge Advance server is limited to 15 users only. Admin can’t delete the user permanently if user gets created by mistake using the gforge admin interface. We have to go to gforge database to delete the user permanently. Below the steps to do the same

• Get user id from user table e.g id =108
• Open table audit_trail and remove all records where user_id =108
• Open mailmen table and delete all records where user_id=108
• Open user_session table and delete all records where user_id =108
• Open user_preference table and delete all records where user_id=108
• Open user table and delete the record where id=108

If you have deleted the Admin user from Gforge accidently then follow the steps steps below to activate the user again

• Open the Gforge database
• Get user id from User table 
• Add user id in site_admin table
• Set 1 in the status field in the user table