Using Linux Debian Lenny without graphic mode

This article at TLDP should help with autologin:
http://www.tldp.org/LDP/LG/issue27/kodis.html

By experimenting on my own system, I think I have a solution for you. You need to substitute your user name for mine ("dunc"). This does not require any modifications to existing software, but it does hang on to the virtual console (VC) for ever - if you exit then you get a prompt from a fresh shell.
In /etc/inittab, for each console that you want to log in, put an entry like (for vc 6):

t1:3:respawn:/bin/sh -c "exec /bin/bash 1<>/dev/tty6 2>&1 0<&1 --rcfile /root/t6 -i"

This breaks down as follows:

t1: unique inittab identifier "test 1"
respawn: init will start another process when this one finishes (as I said above, this hangs on to the VC for ever)
/bin/sh -c "exec /bin/bash 1<>/dev/tty6 2>&1 0<&1 --rcfile /root/t6 -i": Start an interactive bash shell opening /dev/tty6 for input and output, set stderr and stdin to also go to /dev/tty6 (VC 6). As it happens, /dev/tty also points there as well. The shell is to initially obey the commands in /root/t6. This leads us on to:

/root/t6 is the file of initial commands that bash should obey:

20:44:10# cat /root/t6
chown dunc /dev/vc/6
exec su - dunc

The first line sets the ownership of the target VC to be owned by the desired eventual user (init starts everything as root). You need to set ownership on /dev/vc/6 and not /dev/tty6, because /dev/tty6 is a symbolic link and chown doesn't follow it for some reason (maybe because the target is a device special file). If you miss out that line it seems to work anyway, but you get a mystery error message "/dev/vc/6: Operation not permitted".
The second line sets the process to be run by the desired user. Because of doing exec, he cannot get back to being root by doing an exit. Because of "su -" and not just "su", the target user goes through a complete login sequence, reading .bash_profile etc.

Hi thanks,  

in my /etc/inittab I have

id:2initdefault


where in runlevel is

0 is halt
1 is single user
2-5  are multi-user
6 is reboot

for multi-user are 2-5 ..what is the difference?  

on the other hand, I need use administrative services  with c++ for sample I need use the date function
but I have problems because I need use "su" or "sudo" , I dont know how I can use it

system ("su mypassword");  
system ("date mydate");

but its not work ...

thanks thanks

Thanks omarfarid,

but your suggestion is the same for    

id:5initdefault   to  change to  id:3initdefault


:(