Problems with passwd after reinstalling shadow

Declan Moriarty junk_mail at
Fri Aug 26 07:41:23 PDT 2005

Recently, Somebody Somewhere wrote these words
> Hello all,
> i am very new to the blfs mailinglist and I am doing  my first try to
> build up an own system from scratch. My BLFS shall become a nice
> little Samba DC in future. So I looked up the samba  dependencies in
> the book and decided to install Linux-PAM-0.80 with cracklib-2.8.3.
> Everything seemed to work good and I am quite sure that I did
> everything like it was described. The only little problem I noticed
> was that the pam.d directory was not created by the install of pam, so
> I made it by hand. After the installation of cracklib and pam I wanted
> to reinstall shadow again, of course.
> There where no problems during the installation. Afterwards I added
> the config-scripts like described  in the book in the pam.d directory.
> The login and logout works fine. Also su, useradd, groupadd and all
> other commands behave normal. The only problem now is passwd:
> When I want to execute passwd as root I only get the error message:
> "passwd: critical error -immediate abort"
>   1. When I comment out the first line of the passwd config in pam.d:
>   #password  required retry=3 difok=8 minlen=5
>   dcredit=3 ocredit=3 ucredit=2 lcredit=2 password  required
>       md5 shadow use_authtok
>   as root passwd says "passwd: Authentication information can not be
>   recoverd"
>   2. When I now delete the "use_authok" parameter in the second line I
>   can use passwd.
> I hope that somebody here has an idea how to solve this problem. I
> already googled, but had no success. If you need further informations
> please ask. I am a noobie and don't know exactly which other logs or
> informations may can help to find the problem.
> Many thanks in advance!  Schoppe

Hi, and welcome.

If you're new to this, we forgive you starting a new thread from an old
one. You are better not using 'reply' when starting a thread, but
writing a clean mail. Otherwise you upset threading and threading freaks

In /var/log there are a host of log files - auth.log might give you more
information, as might any of them. 

There is a mail archive full of cries for help after pam has gone funny.
You can search theswe for something similar

+pam +root +passwd might be a good search to start with

When all fails, read the docs that came with pam.


	With best Regards,

	Declan Moriarty.

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