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2.1 OS/400 V5R3 PTFs Can Corrupt Licensed Internal Code
by Doug Bidwell
Unlike many of you, I spend a great deal of time–some would say an inordinate amount
of time–dealing with PTFs for the OS/400 and i5/OS operating systems. And even a techie like
me gets burned every now and then. Be careful with Cumulative Group PTF C6101530, which
I call "cume" 6101 for short. If you follow the current installation instructions that are online at
IBM’s Fix Central site, you will be OK. But if you follow the instructions that ship with the PTF
order, you could in trouble.
The basic problem is that IBM issued from PTFs, and they were defective. This is never
a good situation, but all operating system vendors have this problem. It follows the Rule of
Unintended Consequences: You fix one problem, and you cause an entirely different one because
computers, their setups, and their applications are complex.
The following is an excerpt from SF98088: Defective PTFs, an IBM Preventive Service
Planning document:
www.inn-online.de < Seite > Seite: 30