#vi /etc/inittab
defaults run level used by RHS are
0 : hault ( do not set init default to this)
1 : single user mode
2 : multi user mode without networking
3 : multi-user mode with networking
4 : unused
5 : X11 (Graphical)
6 : reboot
#runlevel : this command shows that in which run level you are at present
in init 3 runlevel, if you type command startx to go to the graphical mode then it will not ask you for password.
By default we have 6 virtual console (text mode), but we van increase or decrease the number of text mode simply by editing the file /etc/inittab
#vi /etc/inittab
line No 18 : id:5:initdefault
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