centos 7 single-user mode, a forgotten root user password reset

Forget single-user mode to solve the root user's password

1. restart the server, press the "e" key when the following interface.

2. enter the editing interface. The original interface.

3. Modify the completion of the interface. Now interface.

4. Press the following interface ctrl-x.

5. Switch directory.

6. Enter the new password.

7. restart the server.