System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

210 AppendixD
Default Configurations Used by INSTALL and UPDATE
Copying Default Configuration File Groups
Copying Default Configuration File Groups
This section discusses renaming the default configuration files groups used by the UPDATE
and INSTALL utilities mentioned in Chapter 3 , “System Startup Functions.”.
Overview
The INSTALL utility replaces a system’s configuration files with a default configuration.
These defaults allow the system manager or system operator to boot the system to a fully
operational level. They may then alter the functioning configuration to meet their system's
needs.
The UPDATE utility optionally replaces a system’s configuration files with defaults. During
an update, the system manager or system operator has the choice of whether or not to use
a configuration stored on the system volume or to replace the current configuration with
the default.
Before a system can properly use its START command, a functioning set of configuration
files must reside in the configuration group CONFIG. The START command uses CONFIG as
its default configuration group.
Since multiple configuration groups reside on a system load tape (SLT), CONFIG is empty
until the system manager copies an appropriate configuration group into it.