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

Chapter 4 109
Using the System Generator (SYSGEN)
Clearing Configuration Changes
Clearing Configuration Changes
The SYSGEN global module CLEAR command (abbreviated CL) removes all temporary
changes made from the four configurators. If, for example, you make IO and SYSFILE
configurator changes and decide not to keep them, issue the global module CLEAR
command to remove the changes made in both configurators.
To clear all temporary changes made from the IO, LOG, MISC, and SYSFILE
configurators, enter CLEAR at the SYSGEN prompt:
sysgen>CLEAR
Saving Configuration Changes
Saving configuration changes is a two-step process. After making the changes in any of the
configurators, you must hold those changes before exiting the configurator to continue your
work.
Use the HOLD command to temporarily hold the changes made in a configurator. Holding
changes allows you to move among configurators or between a configurator and the global
module without losing changes.
Refer to the sections on the IO, LOG, MISC, or SYSFILE configurators for information on
using HOLD within each configurator.
The KEEP command (abbreviated KE or K) saves (stores to disk files) changes held from any
of the SYSGEN configurators.
KEEP has the syntax:
KEEP [ [NAME=]
groupname ]
Groupname may be eight characters or fewer and must begin with an alphabetic character.
SYSGEN keeps track of the current configuration group, whether it is the default group
with which you booted the system, a group specified by the
basegroup parameter on the
initial SYSGEN command line, or a group switched to by the BASEGROUP global
configurator command. If you do not specify a basegroup with the KEEP command and did
not specify a group with the
newgroup parameter on the initial SYSGEN command line,
SYSGEN uses the current working base group (either the default or the one set by a
method listed above) to save the configuration changes.
The KEEP command can be used to save configuration changes to a group other than the
current working group. In addition, if the desired group does not already exist, the KEEP
command creates it and then saves the configuration changes to it. All groups are saved in
the SYS account.
To keep changes to a group other than the current working configuration group, enter the
KEEP command and a new group name: