System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Chapter 4
Using the System Generator (SYSGEN)
Clearing Configuration Changes
101
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:
sysgen>KEEP NEWCONFG (Sample name only)
If changes are being saved to a group that has existing configuration files, SYSGEN asks if that group should
be overwritten: