The other way to do it is to not touch the shadow file.
*remove the computer from the network while doing this*
mount up the partition and add in a user to your /etc/password file with a UID of 0 and a GID of 0 (I usually use Tux)
Then save the file and reboot.
When you are asked for the user put in the one you just created (eg Tux)
that should let you in without a password, then since you are root you should be able to change the root password to something you know.
Just make sure you remove the temporary user (Tux) otherwise you will cause all sorts of security issues.
*add the computer back to the network*

  Later and happy hacking

 Dany Allard

bogi wrote:
Re: [clug-talk] Password lost

Ok.
So you locked it up :-)
check a system, where you have a known password, copy the /etc/shadow file, it
should contain a line for root user's password, encripted :-) put it on a
floppy ..
Get a boot-cd (from the distro, or redhat or fedora or etc...) and reboot the
puter with it.
mount the now diabled system somewhare, the boot-disk rescue option should
have an option to do so. If not, just choose a terminal option, and mount it
somewhare.
edit the systems /etc/shadow file by pasting the (known but encripted)
password over the existing one. save, the reboot.
Hopefully now the system has the same password you had in the other system.

The JohnTheRipper option, against a good password could take years :-)

Cheers
Szemir


On May 4, 2004 05:17, Dave Bourassa wrote:
> Curtis Sloan wrote:
> > Why do I always forget single-user mode?  This is the way to go.
> >
> > Thanks, Szemir.
> >
> > Curtis
> >
> > On Mon May 3 2004 18:51, bogi wrote:
> >>Need to restart the system in single mode. With Lilo, it is a -s switch,
> >>with grub you add single to the boot-params of the kernel. This should
> >> drop you onto a root-shell, change the root password: passwd root
> >>Type in what you want :-) Just remember it :-) , then CTRL+d to exit the
> >>root-shell. The system should reboot then, restart it normally. done.
> >>
> >>Cheers
> >>Szemir
> >>
> >>On May 3, 2004 18:30, Dave Bourassa wrote:
> >>>Okay I confess.  I seem to have forgotten the root pw for my wife's SuSE
> >>>9.0 box.  I have the user id and pw, but I can't for the life of me
> >>>remember the root pw.  What's the easiest way to recover from this
> >>>calamity?  All I wanted to do was reset the clock for daylight saving
> >>>time and it wants root access to do it.  Of course I should have it for
> >>>other stuff anyway, so any help will be appreciated.  Thanx a bunch.
>
> Thanx for the help, guys.  I've tried the single user mode, though, and
> it comes up and asks me for the pw before I can get into it.  Is it
> something new with SuSE 9.0 and grub, to increase security?  I'll check
> into the links provided after work today, unless you have any more ideas
> on the single user mode trick.
>
> Thanx again.


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