how to break root password or simple user password in RHEL7

Break The Password In RHEL7

suppose you forget the root password what need to be done to change the root password

1.first thing is that you need to physical access of the machine.

2. after the press the power button continuously press esc key.

3.select your OS and press “e”.

4. Go down and go to the last of following line.

5. after LANG=en_US-B  write  rd.break selinux=0

6. Press Ctrl+X. And machine will boot.

7. But here, you can’t give the passwd command. So you need the mount file system because mount

For  the rights

#mount –o remount,rw /sysroot

#chroot  /sysroot

8. Now your shell is change and you can give passwd command .

9. Now you can change your password afterthat  do exit 2 times then your system will reboot.

10. Now login with your New password.