Hi,

My answers: df gives me 41% use of the disk. I can create and copy files on the disk.

Both /etc/passwd and /etc/shadow looks fine to me.

Disk physical error? Might be, how do I check that?

Samuel

Marcelo Roccasalva escribió:

On Feb 1, 2008 7:12 AM, Samuel Rochas samuel.rochas@iesedu.com wrote:

...

Hi,

I run Centos 4.

I can't add users using the adduser command, I get this error: adduser: cannot rewrite shadow password file

I can't change the users passwords with passwd, I get this error: passwd: Authentication token manipulation error

What is wrong?

root filesystem full or read only? disk physical errors?

Hi Ralph,

-r-------- 1 root root 1653 ene 30 12:03 /etc/shadow

Samuel

Ralph Angenendt escribió:

Samuel Rochas wrote:

...

Hi,

My answers: df gives me 41% use of the disk. I can create and copy files on the disk.

Both /etc/passwd and /etc/shadow looks fine to me.

Disk physical error? Might be, how do I check that?

What's the output of lsattr /etc/shadow?

Cheers,

Ralph

---

Dear Ralph,

Sorry... ------------- /etc/shadow

Samuel

Ralph Angenendt escribió:

Samuel Rochas wrote:

...

Hi Ralph,

-r-------- 1 root root 1653 ene 30 12:03 /etc/shadow

...

...

What's the output of lsattr /etc/shadow?

                    ^^^^^^
                    !!!!!!

Ralph

---

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CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

On Fri, 1 Feb 2008 16:52:21 +0100, Ralph Angenendt wrote

Samuel Rochas wrote:

...

Dear Ralph,

Sorry... ------------- /etc/shadow

Okay, so that's not it, either.

Whatś the output of : getenforce

ls -Z /etc/shadow

might be an SELinux issue If so, you can do a "restorecon /etc/shadow"

Regards,

Michel

Ralph

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On Fri, 2008-02-01 at 17:29 +0100, Samuel Rochas wrote:

Dear Michel,

...

Whatś the output of : getenforce

Enforcing

...

ls -Z /etc/shadow

-r-------- root root system_u:object_r:shadow_t /etc/shadow

After running those commands, I can run passwd without errors (passwd: all authentication tokens updated successfully), but the password won't be changed.

...

might be an SELinux issue If so, you can do a "restorecon /etc/shadow"

Did it, still can't update the password.

To completely rule out SELinux.. Do "setenforce 0" try to change password Please make sure that ALL fields are accounted for in the shadow file and there are no line breaks! As a final solution you can try to remove the password of root completely (in runlevel 1), reboot, login as root and change the password again.

Regards,

Michel van Deventer

Regards Samuel

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Hi,

Before I had this problem, I've changed the root password twice, and something went wrong, since I was not able to login as root anymore :(

I've started the box with the GRUB option init=/bin/bash, mounted the disk rw and executed the passwd command successfully. I've restarted and could log into the box as root. But then, trying to issue the passwd command again did not work.

I am not sure if and how those actions can be related to my problem?!?

Regards Samuel