Operation Manual
If a script already present in /etc/init.d/ should be integrated into the existing
runlevel scheme, create the links in the runlevel directories right away with insserv or
by enabling the corresponding service in the runlevel editor of YaST. Your changes
are applied during the next reboot—the new service is started automatically.
Do not set these links manually. If something is wrong in the INFO block, problems
will arise when insserv is run later for some other service. The manually-added
service will be removed with the next run of insserv for this script.
16.2.3 Conguring System Services
(Runlevel) with YaST
After starting this YaST module with YaST > System > System Services (Runlevel), it
displays an overview listing all the available services and the current status of each
service (disabled or enabled). Decide whether to use the module in Simple Mode or in
Expert Mode. The default Simple Mode should be sufcient for most purposes. The left
column shows the name of the service, the center column indicates its current status
and the right column gives a short description. For the selected service, a more detailed
description is provided in the lower part of the window. To enable a service, select it
in the table then select Enable. The same steps apply to disable a service.
For detailed control over the runlevels in which a service is started or stopped or to
change the default runlevel, rst select Expert Mode. The current default runlevel or
“initdefault” (the runlevel into which the system boots by default) is displayed at the
top. Normally, the default runlevel of a openSUSE system is runlevel 5 (full multiuser
mode with network and X). A suitable alternative might be runlevel 3 (full multiuser
mode with network).
This YaST dialog allows the selection of one of the runlevels (as listed in Table 16.1,
“Available Runlevels” (page 232)) as the new default. Additionally, use the table in this
window to enable or disable individual services and daemons. The table lists the services
and daemons available, shows whether they are currently enabled on your system and,
if so, for which runlevels. After selecting one of the rows with the mouse, click the
check boxes representing the runlevels (B, 0, 1, 2, 3, 5, 6, and S) to dene the runlevels
in which the selected service or daemon should be running. Runlevel 4 is undened to
allow creation of a custom runlevel. A brief description of the currently selected service
or daemon is provided below the table overview.
238 Reference