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

Chapter 4

Using the System Generator (SYSGEN)

Entering the SYSGEN Global Module

The command for the SYSGEN utility is SYSGEN. SYSGEN has four positional parameters:

SYSGEN [ basegroup]

[ ,newgroup ]

[ ,inputfile ]

[ ,outputfile ]

The basegroup parameter specifies the group in the SYS account that contains the configuration data file set

to be used or changed. The default base group is the group used to boot the system (usually CONFIG). The

default base group is the group specified in the initial system load (ISL) START command line. (For

information on specifying configuration groups during START, refer to Chapter 3, “System Startup

Functions.”)

If you attempt to specify a nonexistent group using the BASEGROUP command, SYSGEN issues the following

message:

**error** group groupname does not exist

The newgroup parameter specifies the group used to store data. If you do not specify newgroup, SYSGEN

stores any configuration changes in the base group by default.

If the group specified by newgroup already exists, SYSGEN asks, at keep time, whether or not it should

overwrite that group with new information. At keep time, if the user does a KEEP with no parameters,

SYSGEN keeps the current base group unless newgroup was specified, in which case the group given is used.

More information on using the KEEP command is provided later in this chapter.

The inputfile parameter specifies the file designator of the file for command input. The formal file

designator is SYSGIN. The default is $STDINX.

The outputfile parameter specifies the file designator of the file for SYSGEN output. The formal file

designator is SYSGOUT. The default is $STDLIST.

When using parameters with the SYSGEN command, place them immediately following the command:

:SYSGEN[basegroup][,newgroup][,inputfile]

[,outputfile]

When using parameters with RUN SYSGEN.PUB.SYS, you must specify them in the phrase INFO=" ":

RUN SYSGEN.PUB.SYS;INFO=

"[basegroup][,newgroup]&

[,inputfile][,outputfile]"

Example 4-1 illustrates activating SYSGEN’s global module. Activate the SYSGEN global module by entering

the command SYSGEN or by entering RUN SYSGEN.PUB.SYS.

Example 4-1 Activating SYSGEN’s Global Module

:SYSGEN

SYSGEN version C.02.05 : catalog version C.02.05 FRI, MAY

20, 1990

** First level command **