SLiM Failed to execute login command

[btunny]

Hello
I am trying to setup the Ubuntu minimal installation to have a basic gui. I have openbox as window manager, cairodock, and SLiM as my display manager. I have setup my xinitrc as follows:
________________________________________________
#!/bin/sh
# /etc/X11/xinit/xinitrc
#
# global xinitrc file, used by all X sessions started by xinit (startx)

# invoke global X session script
. /etc/X11/Xsession
exec /bin/sh/login
exec slim
exec openbox-session
exec cairo-dock
________________________________________________

SLiM Shows up, but when I try to login, I get that message.
please tell me what I am doing wrong
thanks

[v3.xx]

I do not know how "exec slim" is suppose to work. Where did you find that?

Take a look at arch.
https://wiki.archlinux.org/index.php/SLiM#Configuration

I have not used slim in years, I remember it was a pain to set up and just using startx (with scripts) was better for me.

https://wiki.archlinux.org/index.php/Xinitrc

[v3.xx]

Just notice this

Enabling SLiMNote: slim (https://www.archlinux.org/packages/?name=slim) relies on systemd-logind.

[btunny]

UPDATE:I switched to lxdm. thanks anyway!