Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 11-05-2007 Installation Manual page 395

telinit 3
All essential programs and services (including network) are started and regular
users are allowed to log in and work with the system without a graphical environ-
ment.
telinit 5
The graphical environment is enabled. Usually a display manager like XDM, GDM,
or KDM is started. If autologin is enabled, the local user is logged in to the prese-
lected window manager (GNOME or KDE or any other window manager).
telinit 0 or shutdown -h now
The system halts.
telinit 6 or shutdown -r now
The system halts then reboots.
Runlevel 5 is the default runlevel in all SUSE Linux Enterprise standard installations.
Users are prompted for login with a graphical interface or the default user is logged in
automatically. If the default runlevel is 3, the X Window System must be configured
properly, as described in
level can be switched to 5. If this is done, check whether the system works in the desired
way by entering telinit 5. If everything turns out as expected, you can use YaST
to set the default runlevel to 5.
WARNING: Errors in /etc/inittab May Result in a Faulty System Boot
If /etc/inittab is damaged, the system might not boot properly. Therefore,
be extremely careful while editing /etc/inittab. Always let init reread
/etc/inittab with the command telinit q before rebooting the machine.
Generally, two things happen when you change runlevels. First, stop scripts of the
current runlevel are launched, closing down some programs essential for the current
runlevel. Then start scripts of the new runlevel are started. Here, in most cases, a number
of programs are started. For example, the following occurs when changing from runlevel
3 to 5:
1. The administrator (root) requests init to change to a different runlevel by entering
telinit 5.
Chapter 26, The X Window System (page 481), before the run-
Booting and Configuring a Linux System 377