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

Chapter 4 103

Using the System Generator (SYSGEN)

SYSGEN Command Syntax

Commands can be classiﬁed as either command only or command with parameters(s).

Commands with parameters can be speciﬁed in one of the following ways:

positional parameters

keyword parameters

options

NOTE The command structure established by SYSGEN enables the user to select

the manner in which parameters accompany the command.

Positional parameters are assigned a position in the parameter sequence. Separate

parameters by semicolons or blanks, or exclude them by using consecutive semicolons.

Enclose subparameters and repeated parameters in parentheses, and separate them by

commas or blanks.

A subparameter can be either strings or numeric values separated by blanks or commas.

Enclose them in parentheses if more than one is present. Always specify subparameters by

ﬁxed position within the subparameter list. You can omit subparameters by entering

consecutive commas.

A repeated parameter is a single parameter value that can be repeated an arbitrary

number of times. Separate parameters by commas or blanks, and enclose them in

parentheses () if more than one is present.

Halting SYSGEN Command Actions

Entering CTRL Y stops listings or cancels partially entered SYSGEN commands.

Issue

CTRL Y at any point in SYSGEN.SYSGEN terminatesthe current action and returns

its prompt. If you enter

CTRL Y while SYSGEN is generating a boot tape, you have the

option of terminating or continuing the tape generation process.

CTRL Y is effective if the SYSGEN output and input has not been redirected and if

SYSGEN is being run from a session.

Specifying the Base Group

When altering or viewing a conﬁguration through SYSGEN, you must ﬁrst select the

conﬁguration group for the operation. Select this basegroup by using the

basegroup

parameter or the BASEGROUP command.