Hi

I changed my user root shell to /usr/src/passwd, by mistake

I forgot add user to command chsh

#chsh -s /usr/bin/passwd

I can't login as root is it possible change this without going to
physical machine and boot from LiveCD?

I know root password, and other user who have default shell /bin/bash

Please

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Jarek Buczyñski wrote:
> Hi
>
> I changed my user root shell to /usr/src/passwd, by mistake
>
> I forgot add user to command chsh
>
> #chsh -s /usr/bin/passwd
>
> I can't login as root is it possible change this without going to
> physical machine and boot from LiveCD?
>
> I know root password, and other user who have default shell /bin/bash
>
> Please
>
> --
> Best regards
>
>

Have you setup sudo? Can you perhaps do a sudo -i, or a sudo /bin/chch
or some such shell?

Joe
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On 02/25/07 17:21, Jarek Buczyñski wrote:
> Hi
>
> I changed my user root shell to /usr/src/passwd, by mistake
>
> I forgot add user to command chsh
>
> #chsh -s /usr/bin/passwd
>
> I can't login as root is it possible change this without going to
> physical machine and boot from LiveCD?
>
> I know root password, and other user who have default shell /bin/bash
>
> Please

Boot from a Live CD and fix it from there.


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> Have you setup sudo? Can you perhaps do a sudo -i, or a sudo /bin/chch
> or some such shell?

Unfortunately I haven't, yet

>Boot from a Live CD and fix it from there.

I know about this but it's remote machine, so I can't do this.

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On 2/26/07, Jarek Buczyñski <jaro80@gmail.com> wrote:
> Hi
>
> I changed my user root shell to /usr/src/passwd, by mistake
>
> I forgot add user to command chsh
>
> #chsh -s /usr/bin/passwd
>
> I can't login as root is it possible change this without going to
> physical machine and boot from LiveCD?
>
> I know root password, and other user who have default shell /bin/bash

su -s /bin/bash

Regards,
Atis

> su -s /bin/bash

It doesn't work

--------------------------
$ su --shell=/bin/bash
Password:
Enter new UNIX password:

--

$ cgrep root /etc/passwd
root:x:0:0:root:/root:/usr/bin/passwd
--------------------------


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On Mon, Feb 26, 2007 at 02:33:37PM +0100, Jarek Buczy?ski wrote:
> > su -s /bin/bash
>
> It doesn't work
>
> --------------------------
> $ su --shell=/bin/bash
> Password:
> Enter new UNIX password:
>
> --
>
> $ cgrep root /etc/passwd
> root:x:0:0:root:/root:/usr/bin/passwd
> --------------------------
>

okay, *maybe* this will work. man su says it looks for the shell
specified by --shell, then $SHELL if --preserve-environment is used,
then the shell in /etc/passwd and finally /bin/sh. So what if you
don't specify a shell, and can remove /usr/bin from your path. Its
possible that if su can't find /usr/bin then it won't find
/usr/bin/passwd and then it will drop to /bin/sh. It probably won't
work, because i'll be its hardcoded to look in /usr/bin, but it might
be worth a shot.


A

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> okay, *maybe* this will work. man su says it looks for the shell
> specified by --shell, then $SHELL if --preserve-environment is used,
> then the shell in /etc/passwd and finally /bin/sh. So what if you
> don't specify a shell, and can remove /usr/bin from your path. Its
> possible that if su can't find /usr/bin then it won't find
> /usr/bin/passwd and then it will drop to /bin/sh. It probably won't
> work, because i'll be its hardcoded to look in /usr/bin, but it might
> be worth a shot.


Thanks but I don't understand what you mean, what should I do, and how,
could you give me more detail (step by step ), please?

--------------
$ echo $SHELL
/bin/bash
--------------

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