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RHEL7 how to change the root password, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

1. Restart the system.

2. Press any key to interrupt the countdown to the boot loader.

Move the cursor to the entry that needs to be booted.

4. Press e to edit the selected entry.

5. Move the cursor to the kernel command line (the line that begins with linux16).

6. Additional rd.break (this will break just the previous control from initramfs to the actual system).

7. Start Ctrl+x

8. Enter the PE system of linux

Mount sysroot as read and write, and change to the system root directory

9. Change the password

10. Execute exit twice and restart the system

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