RE: Install (or rollback) to previous version of OS

You could get the first boot, but then when you go to load LIC with option 2
(clears the system) everything is wiped out.

You ~can~ accomplish booting from an image catalog but that catalog must be
on another system. Larry and I do it all the time but there is some set up
and advanced stuff going on that while not hard, is new to many folks.
Google "IBM i network install" and you'll find several redpapers and other
documentation on it.




--
Jim Oberholtzer
Agile Technology Architects

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> On Behalf Of John Allen
Sent: Wednesday, December 19, 2018 5:40 PM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
Subject: RE: Install (or rollback) to previous version of OS

Evan,

So you are saying you do not think I can download the 7.1 Optical Images
onto the 7.2 partition and then do a slip install from it resulting in a
partition with 7.1?


John

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Evan
Harris
Sent: Wednesday, December 19, 2018 6:29 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: Install (or rollback) to previous version of OS

Hi John

To be clear, what I understand you want to do is load V7R1 media into a
V7R2 LPAR and then run the upgrade (or whatever) process in such a way that
the system is reverted to V7R1.
As far as I am aware what you are asking is not possible. You can't back
level an Operating System to an older version once updated.

if you want a V7R1 LPAR you will need to build one from scratch and restore
the data to it somehow (I've never tried this)

I am wondering if you need V7R1 Extended support to be entitled to download
the media and patches now that it is out of support.


On Thu, Dec 20, 2018 at 12:07 PM John Allen <jallen@xxxxxxxxxxx>
wrote:

No need to ask why I need to do this, trust me I need to do this.



I have a Power 8 with 4 partitions.

All partitions are currently running 7.2

Currently in the process of updating one partition to 7.3

Want to update one partition back to 7.1 (not even sure if this is
called update? rollback? downgrade?)



At one point in the past I had CD's for 7.1 but can't find them now.

I am under SWMA so I can get 7.1 from IBM (download from IBM web

site,

can't find a way to order 7.1 CD's).



My question is: What is the easiest way for me to install 7.1 on one

of the partitions running 7.2?



Thanks in advance for any suggestions or advice



John







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