How to change root passwd without original passwd

[Carme Torca]

Hi,

I need to change root passwd, but it ask me for Old passwd, and we don't have it.

#passwd  root
Old password:

How can I change this passwd if I don't know Old root passwd?

Thanks a lot of,

Carmen.

[Torsten.]

Did you try

/sbin/passwd

[Carme Torca]

Yes, I tried

# /sbin/passwd  root
Old password:

[Torsten.]

Are you root currently?

How about just

/sbin/passwd

(without root at the end)

Note:

Superusers are not prompted for old passwords, unless
they are attempting to change a superuser's password in a trusted
system.


Is it trusted?

[Carme Torca]

Yes, the systems is in trusted mode.

When I put /sbin/passwd it ask me for the passwd name

# /sbin/passwd
Usage: passwd name

[Carme Torca · Accepted solution]

I have the solution!!!

# cd /tcb/files/auth/r/

and then delete the actual encrypted password from the root file.

Thaks everyone.