topic Re: useradd: Unknown group `dialout'. in Operating System - Linux

useradd: Unknown group `dialout'.

GnanaShekar — Mon, 03 Apr 2006 04:20:41 GMT

Hi,

I am getting the following error while creating a local unix user account. Please suggest.

bngddem3:~ # useradd -m -d /home/rrao -s /bin/bash -g pncerts rrao
useradd: Unknown group `dialout'.
useradd: Unknown group `uucp'.
useradd: Unknown group `video'.
useradd: Unknown group `audio'.
useradd: Unknown group `pncerts'.

bngddem3:~ # more /etc/SuSE-release
SUSE LINUX Enterprise Server 9 (x86_64)
VERSION = 9
PATCHLEVEL = 3

Thanks & Regards,
-Gnanashekar-

Re: useradd: Unknown group `dialout'.

Sergejs Svitnevs — Mon, 03 Apr 2006 04:29:34 GMT

Does the group "pncerts" exist?
# grep pncerts /etc/group

If no you should add new group
# groupadd pncerts
and then add new user using your command useradd ...

Regards

Re: useradd: Unknown group `dialout'.

GnanaShekar — Mon, 03 Apr 2006 04:50:02 GMT

Hi,

pncerts group exists.

bngddem3:~ # tail -f /etc/group
haclient:!:90:
radiusd:!:101:
quagga:!:102:
vscan:!:103:
nobody:x:65533:
nogroup:x:65534:nobody
users:x:100:jsingh,pmirji,vijay,venkat,pmallick,grajashe,sgummara
dump:!:104:
dba::1000:oracle
pncerts:!:1001:

Also, I am getting the error message even if I donot specify the "pncerts" group in the useradd command.

bngddem3:~ # useradd -m -d /home/rrao -s /bin/bash rrao
useradd: Unknown group `dialout'.
useradd: Unknown group `uucp'.
useradd: Unknown group `video'.
useradd: Unknown group `audio'.

Please suggest,
Thanks & Regards,
-GnanaShekar-

Re: useradd: Unknown group `dialout'.

Sergejs Svitnevs — Mon, 03 Apr 2006 04:58:21 GMT

Check out "/etc/default/useradd" file also and remove the groups that do not exist.

Re: useradd: Unknown group `dialout'.

GnanaShekar — Mon, 03 Apr 2006 06:05:27 GMT

Hi,

I am able to create a user (though it throws some errors) with the following command (without -g pncerts option).

bngddem3:~ # useradd -m -d /home/rrao -s /bin/bash rrao
useradd: Unknown group `dialout'.
useradd: Unknown group `uucp'.
useradd: Unknown group `video'.
useradd: Unknown group `audio'.

However while changing the password I get the following error message:

bngddem3:~ # passwd rrao
Changing password for rrao.
passwd: User not known to the underlying authentication module
bngddem3:~ #

I could get the following from the logs

Apr 7 20:33:30 bngddem3 useradd: new user: name=rrao, uid=1011, gid=100, home=/home/rrao, shell=/bin/bash
Apr 7 20:36:04 bngddem3 passwd[31183]: User root: User not known to the underlying authentication module

Also the contents of /etc/default/useradd is

bngddem3:~ # more /etc/default/useradd
GROUP=100
HOME=/home
INACTIVE=-1
EXPIRE=
SHELL=/bin/bash
SKEL=/etc/skel
GROUPS=dialout,uucp,video,audio

Please suggest.

Thanks & Regards,
-GnanaShekar-

Re: useradd: Unknown group `dialout'.

Stuart Browne — Mon, 03 Apr 2006 08:07:12 GMT

As Sergejs said, remove the unwanted groups from the 'GROUPS' line in '/etc/defaults/useradd'.

This will stop 'useradd' trying to add the groups automatically when you add a new user, and stop the error from occuring.

Re: useradd: Unknown group `dialout'.

GnanaShekar — Mon, 03 Apr 2006 23:12:28 GMT

Hi,

I have removed the "GROUPS" from /etc/default/useradd.

now I am able to create user:

bngddem3:/etc # useradd -m -g pncerts tmp3
bngddem3:/etc # passwd tmp3

gut getting the following error:

passwd: error while loading shared libraries: libuser.so.1: cannot open shared object file: No such file or directory

Please suggest,
Thanks & Regards,
-GnanaShekar-

Re: useradd: Unknown group `dialout'.

Stuart Browne — Tue, 04 Apr 2006 00:01:56 GMT

Well the change you made shouldn't have any affect on the 'passwd' command, so what else have you done recently?

It looks like one of the libraries has dissapeared now.

Re: useradd: Unknown group `dialout'.

GnanaShekar — Tue, 04 Apr 2006 00:15:14 GMT

Hi,

From the e-mail trace u can see that I was unable to change password earlier also.

bngddem3:~ # passwd rrao
Changing password for rrao.
passwd: User not known to the underlying authentication module
bngddem3:~ #

I found that the nsswitch.conf file was empty. I later on copied this file from a similar system.

now I am getting this error:

bngddem3:/etc # passwd tmp2
passwd: error while loading shared libraries: libuser.so.1: cannot open shared object file: No such file or directory

Please suggest,
Thanks & Regards,
-GnanaShekar-