IBM PS/2 N51 SX HMR Manual page 13

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IBM PS/2 Model N51 SX HMR

System Partition

1.2.4 System Partition

The Model N51 has a protected partition, called the system partition, on

the hard disk that contains system setup and utility programs, customer

and advanced diagnostics, and system-configuration data set.

All

necessary functions provided by the Reference Diskette are also on this

partition and can be loaded by pressing and holding Ctrl+Alt+Delete and,

as soon as the cursor moves to the upper right corner of the screen,

pressing and holding Ctrl+Alt+Insert.

The Reference Diskette is reserved

to restore its contents on the system partition when you replace a hard

disk drive or when a hard disk problem prevents the system from starting

from this partition.

The system-configuration data set holds up to nine different configuration

data.

The configuration data allows you to use the system without running

the automatic configuration after the system configuration has been

changed by attaching or removing a communications cartridge to or from the

system expansion port.

On each power-on-reset, the POST compares the

current system configuration with the one stored in the CMOS RAM and CMOS

RAM Extension.

If both configurations are the same, the POST continues to

test the system.

If any differences are found, the POST looks for the

same configuration in the system-configuration data set on the system

partition, and selects the right configuration, then updates the

configuration in the CMOS RAM and CMOS RAM Extension.

The

system-configuration data can be updated and removed by using the system

utility programs.

Any format command provided by an operating system has

no effect on formatting the system partition.

1.2.4 - 1

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