Change the root user password in single-user mode.

Change the root user password in single-user mode.
Change the root user password in single-user mode

1. When the system is restarted, press "E"

2. select option 2 and press e to enter

3. Add "space" after rhgb quiet, enter a number: 1, s, S, or single, and press Enter.

4. Automatically restarts after B is pressed.

5. automatically enters single-user mode after restart

6. Enter the passwd root modification command, enter the same password twice, and then restart the system in reboot to log on with the modified password.

Note: Make sure that the root user is the administrator. If a Custom User is an administrator, enter the custom name.