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

Chapter 8 177
Modifying System File Configurations
Entering the SYSFILE Configurator
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):