Hello, please i am new here and i would like to ask about
how to break root password in Redhat 7.
Thank you !!

You are unlikely to find help breaking into a system here.

Why? To whom does the computer belong? What is your experience and goals?

Please read the FAQ on using LQ, and the Rules.
Take time to study, before you "jump-in"!!!

Best to use the Intro forum first, to introduce yourself to the community,
so you can be welcomed.

Hint: web-search your question, using the word 'recover' instead of "break"
(as in: criminals "break" in to your house!!!, vs. "recover" my lost key)

Red Hat is a commercial product. As such there is a vast amount of support available to customers.

1 members found this post helpful.

-::-Recovery for a lost root password-::-

When Grub boot’s press the "e" key and go to the end of the kernel line and type:
rd.break.

Than run:
mnt -o remount, rw /sysroot

Than type passwd and enter a new password twice.
Create a .auto relable file or all the changes will be lost and SELinux will use the old password.

If you don't know how to create a .auto re-lable than call RH Customer Service OR ask your employer to change it.

1 members found this post helpful.

Hi linux10 and welcome to LQ.

In the future please review some of the helpful links in the LQ FAQ to aid you with properly asking a question and creating a more helpful thread title.

As you can see, your question can be interpreted in various ways.

There is a specific LQ rule which bans questions about hacking and cracking or otherwise topics which can be damaging to the LQ site.

The possible interpretation that you need to recover a password on a system which you have access too is not a bad topic because this would imply that you normally do have access to the system and merely need to recover a password.

1 members found this post helpful.