Browse Prior Art Database

Method to Ensure that Interim Fixes are not Incorrectly Overwritten by Fix Packs

IP.com Disclosure Number: IPCOM000028939D
Original Publication Date: 2004-Jun-08
Included in the Prior Art Database: 2004-Jun-08
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Abstract

This invention resolves the problem where a customer installs an interim fix for a software defect, then installs a fix pack, which doesn't include the interim fix. This situation will result in causing the original problem to resurface.

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Method to Ensure that Interim Fixes are not Incorrectly Overwritten by Fix Packs

When an interim fix is installed, it will install an interim fix description file named interimfix-x.id, where x is a unique name for that interim fix (usually an APAR number). The description file will contain a list of all files that are included in the interim fix, along with their file sizes. This description file will be in a known location.

When a fix pack is installed, the fix pack installation program will check the known location for all installed interim fixes. When an interim fix description file is found, the fix pack installation program will verify that the interim fix still exists, by checking the file size of the files in the interim fix description file. If the files do not match, then this means that the interim fix is no longer active, and the fix pack will be installed If the file sizes do match, the fix pack installation program will check if it that fix pack includes the interim fix (by using the unique portion of the name of the interim fix description file). If the fix pack does contain this fix, then the fix pack will be installed. If the fix pack does not contain the fix, then a warning will be displayed, and the customer will then have the opportunity to quit the fix pack installation before any files have been overwritten.

The following flow chart describes the Fix pack Installation process:

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