Enable and use the "root" User revision in Mac OS X

1. SlaveAppleMenu, selectSystem preference settings....
2. SlaveDisplayMenu, selectAccount.
3. Click the lock icon and use the Administrator account for authentication.
4. Click "Logon Options ....".
5. Click "Edit..." in the lower right corner. // It is actually the "add" button, and it is on the right
6. Click "Open Directory utility.
7. Click the lock icon in the directory utility window.
8. Enter the Administrator account name and password, and then click "OK ".
9. SlaveEditSelectEnable Root User.
10. Enter the root password you want in the "password" and "Verification" fields, and then click "OK ".

Summary: this low-level error also exists in Apple's official Chinese support documentation, which is critical to English documentation.