Browse Prior Art Database

Generalized Transient Load and Soft Restart

IP.com Disclosure Number: IPCOM000013566D
Original Publication Date: 1999-Nov-01
Included in the Prior Art Database: 2003-Jun-18
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Richard Bealkowski: AUTHOR

Abstract

Disclosed is a method to load boot software and restart a computer system. A boot image (or boot program) is deposited in the memory of a running operating system and then the computer system is restarted and uses the deposited image as the boot code. There is no dependency on modifying or writing to local media such as disk. Image Copied Into RAM Build Control Block Restart Flag Set

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Generalized Transient Load and Soft Restart

Disclosed is a method to load boot software and restart a computer system. A boot image (or boot program) is deposited in the memory of a running operating system and then the computer system is restarted and uses the deposited image as the boot code. There is no dependency on modifying or writing to local media such as disk.

Image Copied Into RAM

Build Control Block

Restart Flag Set

Shutdown and Reboot System

POST Detects Restart Flag

RAM Contents Maintained

Environment and I/O Reinitialized

No

Initiate Process

Processing as Usual

The diagram shows a flowchart for the Generalized Transient Load and Soft Restart method.

First, a decision is made to run the Generalized Transient Load and Soft Restart method. This decision can be push-based which means that a domain logon script or other glass-house type mandate has been implemented. This decision can be pull-based which means that a user/administrator has decided to run the process.

The image is accessed and is copied into system random access memory (RAM). The image is not required to be contiguous. The image must be guaranteed to be persistent (not overwritten or paged out). A control

1

Yes

NoPOST as Usual

Yes

POST Gathers Image

Boot Initiated From RAM Image

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block for the image is generated and written to memory. The control block includes the image type (for example, program or media image), a scatter/gathe...