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

84 Chapter3
System Startup Functions
Installing the Operating System
where options are: START [;GROUP= cgn ] [LOGON= acct ]
[{ ;SINGLE-DISC [{ ;SINGLE-USER
;MULTI-DISC ]} ;MULTI-USER }]
[{ ;SYSSTART
;NOSYSSTART }]
To use INSTALL, enter the INSTALL command with or without START/NOSTART and its
options. Separate options from the INSTALL command and other options with a space or
semicolon.
Entering the command INSTALL at the ISL prompt without listing any options:
ISL> INSTALL
is the same as specifying the following default options:
ISL> INSTALL START GROUP=CONFIG LOGON=OPERATOR.&
SYS MULTI-DISC MULTI-USER SYSSTART
The INSTALL process with its default options instructs the system to perform the
following tasks if an autoboot file exists, the autoboot file is enabled, and the START option
is specified:
• Install the operating system, and autoboot the system from disk after the installation is
completed.
• Use the configuration group, CONFIG.SYS.
• Attempt to log on in the user account OPERATOR.SYS (if there is no OPERATOR.SYS
user, you will see the MPE prompt)
• Bring up all volumes present on the system.
• Allow access to all mounted volumes by all users.
• Execute the commands in the system startup file, SYSSTART.PUB.SYS, if it is present.
Installing the Operating System: a Preview
Booting the system to MPE/iX by using the INSTALL utility may involve preliminary steps
if your system has previously been in use. When installing a system for the first time, you
do not need to be concerned with these preliminary steps discussed below.
Some of the preliminary steps include the following:
1. Backing up system data.
2. Removing users and jobs from the system.
3. Storing to tape any system files that you wish to maintain.
Once you are ready to begin the installation proper, the following are required steps of the
process:
1. Installing from the system load tape.