Enable Root User Login OS X

We all know that under OS X system, you can get root user rights by using the sudo command in the terminal (Terminal); Here's a way to turn on the root user right for OS X system globally, that is, to log in to the system with the root account.

Login option (Login options) (Accounts) (Preferences), System Preferences (systems), click the Join button, and click Open Directory Utility Click on the menu bad edit entry, select Enable root user (enable root users) a user to this step will encounter the turn on root user This is a gray unavailable situation, please remove the lower left corner of the lock and then proceed. Finally, enter and confirm the password, log off and log on to the system with the root account.