Re[2]: AS/400 V4R2-R1 "downgrade"

[eric.delong@xxxxxxxxxxxxxxxxx]

     And everyone knows that marketing reps are MUCH more qualified to 
     make technical claims than IS professionals. After all, Microsoft 
     marketing teams have practically re-written the book on what is 
     (and is not) possible.... ;)
     
     Eric DeLong


______________________________ Reply Separator _________________________________
Subject: Re: AS/400 V4R2-R1 "downgrade" 
Author:  <MIDRANGE-L@midrange.com > at INET_WACO
Date:    10/13/98 6:20 PM


On 10/13/98 18:20:12 you wrote:
>
>At 04:27 PM 10/13/98 -0500, you wrote:
>>Has anybody tried de-upgrading an AS/400 OS release lately?  We have a 
>customer that wants to move a system from V4R2 back to 
>>V4R1 so their secondary system matches that OS/400 release of their 
>production system which can't be upgraded right now. 
>>(Their s/w vendor doesn't support V4R3, and they don't want to upgrade 
>twice in rapid succession).  
>>
>>This process isn't documented anywhere that I can find (no surprise), so 
>right now I'm planning a relatively manual approach 
>>of scratching the system, loading the OS and licensed programs, then 
>restoring the configuration and user libraries and 
>>manually updating things like TCP/IP configuration and system values. 
>>
>You don't want to do this (to be polite).  Although technically possible, 
>this is VERY difficult, and you will likely screw up QUSRSYS forever.
>
>Al
     
I know that I don't want to restore over the V4R1 QUSRSYS and QGPL with the 
QUSRSYS from V4R2-- I would have to pull out the user files selectively 
instead.  Or do you mean that the likelihood of getting all of the right 
stuff and only the right stuff from the tapes is so small that it's a very 
slim chance that it could be done successfully?
     
If I can convince the customer that this is just a bad idea I will, but 
the marketing rep told them it could be done, and it becomes my job to make 
him correct--when possible.
     
Erik Knudson
     
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