can't su to newly created user

[hedekaradeniz]

Hi,

I did these in order:
adduser --system margo
passwd margo
groupadd developers
usermod -g developers margo
groupadd www
usermod -a -G www margo

But i couldn't su to margo after that, when i used su, it goes like this:
# su margo
# whoami
root
#

than i removed margo from www group, i guessed maybe because of this i couldn't su...

usermod -G developers margo

But still i can't su to the user margo... Can you help me pls?

Thanks in advance
margo

***********************************

my user data is like this:
# id margo
uid=101(margo) gid=103(developers) groups=103(developers)

and /etc/groups is like this:
# cat /etc/group

root:x:0:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:
tty:x:5:
disk:x:6:
lp:x:7:
mail:x:8:
news:x:9:
uucp:x:10:
man:x:12:
proxy:x:13:
kmem:x:15:
dialout:x:20:
fax:x:21:
voice:x:22:
cdrom:x:24:
floppy:x:25:
tape:x:26:
sudo:x:27:
audio:x:29:
dip:x:30:
www-data:x:33:
backup:x:34:
operator:x:37:
list:x:38:
irc:x:39:
src:x:40:
gnats:x:41:
shadow:x:42:
utmp:x:43:
video:x:44:
sasl:x:45:
plugdev:x:46:
staff:x:50:
games:x:60:
users:x:100:
nogroup:x:65534:
crontab:x:101:
ssh:x:102:
developers:x:103:margo
www:x:104:
laloona:x:1000:

#

[jledhead]

what shows up in your auth file

tail /var/log.auth.log

[coopstah13]

seems to have something to do with the --system flag, straight from the man page for adduser

   Add a system user
       If called with one non-option argument and the --system option, adduser
       will add a system user. If a user with the same name already exists  in
       the  system uid range (or, if the uid is specified, if a user with that
       uid already exists), adduser will exit with a warning.

       adduser will choose the first available UID from  the  range  specified
       for  system users in the configuration file.  The UID can be overridden
       with the --uid option.

       By default, system users are placed in the nogroup group.  To place the
       new  system  user  in  an  already  existing  group,  use  the --gid or
       --ingroup options.  To place the new system user in a  new  group  with
       the same ID, use the --group option.

       A home directory is created by the same rules as for normal users.  The
       new system user will have the shell /bin/false (unless overridden  with
       the  --shell option), and have logins disabled.  Skeletal configuration
       files are not copied.

if this is just a personal user, you don't need --system flag

[hedekaradeniz]

Lol in "/etc/passwd" the command after connecting for user "margo" was "/bin/false"...

i changed it to "/bin/sh" and now i can log to user margo...
But why it is changed to /bin/false" or how could I change it? anybody know?

margo

:~$ cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
sshd:x:100:65534::/var/run/sshd:/usr/sbin/nologin
margo:x:101:103::/home/margo:/bin/false
laloona:x:1000:1000::/home/laloona:/bin/sh
:~$

thanks

margo

[hedekaradeniz]

Hey jledhead,
there is no auth.log

# tail /var/log.auth.log
tail: cannot open `/var/log.auth.log' for reading: No such file or directory

thanks

[hedekaradeniz]

hmmm i think i created that user wrongly with --system attribute...
man page definitely saying difference of system user...

thanks for your time, i think i have to search difference between system user and regular user... really didn't know the difference of them

Thanks again for your help....