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

Chapter 8
Modifying System File Configurations
Entering the SYSFILE Configurator
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Enter the command and a fully qualified SL name to change the default, SL.PUB.SYS, as shown in the
following example.
sysfile>CMSL NEWSL.PUB.SYS
Listing CMSL Contents
The LCMSL command (abbreviated LC) lists the contents of the CMSL or a single segment in the CMSL. LCMSL
has the following parameter:
LCMSL (LC) [SEG =] segmentname
The segment name designates which segment to list. If the segment name is not specified, the entire contents
of the CMSL is listed.
If SYSGEN cannot locate the segment name, an error is generated, and the command is rejected by the
segmenter.
To list the contents of a single segment, enter the command and the segment name:
sysfile>LCMSL cminin
To list the entire CMSL, enter the command without a parameter.
NOTE The LCMSL command locks whichever SL it is listing. If the CMSL is SL.PUB.SYS, and no
changes have been made (changes force a temporary SL to be created), any program that uses
the SL stops. This can cause the system to appear to be down.
Clearing SYSFILE Configurator Changes
If you desire to clear all SYSFILE configuration changes made, enter the CLEAR command at the SYSFILE
configurator prompt:
sysfile>CLEAR
Once a SYSGEN> KEEP is done, the changes become permanent and CLEAR does not remove them.
Holding and Saving Configuration Changes
Using the SYSFILE configurator commands described in the previous sections changes the configuration
specified in the SYSGEN command line or global BASEGROUP command. These changes are temporary and are
lost if not properly saved.
Saving configuration changes is a two-step procedure. After you alter a configuration, you must first, hold the
changes before exiting the configurator. Second, use the global module KEEP command to save the changes.
To hold changes, enter the HOLD command (abbreviated HO) at the SYSFILE configurator prompt:
sysfile>HOLD
You can work in a SYSGEN configurator, hold the changes, and continue working in another SYSGEN
configurator before saving the changes.
To save the changes, hold all desired changes, exit to SYSGEN’s global module, and issue the KEEP command
(abbreviated KE or K):
sysgen>KEEP newgroupname