How to create domain controller in server 2012 ?

How to create domain controller in server 2012 ?

• Go to roles
• Add roles & features (Next)
• Roles based or feature based (Next & Next)
• Check the Active directory domain services (Next)
• Install
• After installing this services click flag button
• Click permote this server to a domain controller
• Add a new forest & fill domain name (E.g.:-ons.com)
• Select domain & forest functional level (I have select server 2008R2 functionality)
• Type Directory service restore mode password (Next)
• NetBIOS name  (Next)
•  AD database, Sysvol, NTDS (Next)
• Read Summary (Next)
• Install