[root@localhost named] init 1 : Single user mode or emergency mode means no network no multitasking is present in this mode only root has access in this runlevel
[root@localhost named] init 2 : No network but multitasking support is present .
[root@localhost named] init 3 : Network is present multitasking is present but with out GUI .
[root@localhost named] init 4 : It is similar to runlevel 3; It is reserved for other purposes in research.
[root@localhost named] init 5 : Network is present multitasking and GUI is present with sound etc.
[root@localhost named] init 6 : This runlevel is defined to system restart.
by default virtual mode-------
[root@localhost named] vim /etc/inittab
replace here "3" to "5" NB: 3 for virtual 5 for multiple
[root@localhost named] startx ( for going to graphical)