Browse Prior Art Database

Remote Program Load of a Diskless Initial Microcode Load Computer System

IP.com Disclosure Number: IPCOM000110574D
Original Publication Date: 1992-Dec-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 1 page(s) / 58K

Publishing Venue

IBM

Related People

Bealkowski, R: AUTHOR [+3]

Abstract

Disclosed is a method for initiating a remote program load in a computer system.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 57% of the total text.

Remote Program Load of a Diskless Initial Microcode Load Computer System

       Disclosed is a method for initiating a remote program
load in a computer system.

      Certain computer systems have a two-stage initialization
process.  This two-stage initialization process is called initial
microcode load (IML).  When the computer system is powered-on, a
program resident in the computer system tests and initializes the
computer system.  Before the resident program completes, the resident
program loads a second program from media such as disk.  This second
program is a portion of the power-on self-test (POST) and basic input
output system (BIOS).  The second program is required for the
run-time operation of the computer system.  An error condition occurs
when the second program (run-time program) is not available from a
local disk (hardfile).

      It is desirable to operate an IML computer system without a
disk in a network environment.  The computer system must have a
diskette drive, network adapter, and a remote program load (RPL)
program which is normally resident on the network adapter.  First, an
exact copy of the system reference diskette is created.  The system
reference diskette includes a boot record with a reference diskette
signature and the second (run-time) program.  The boot record of this
reference diskette copy (called the RPL boot diskette) is modified to
include a call to the RPL program.  The RPL program is normally
called through...