• Subject: Re: Upgrade... help!!
  • From: "R. Bruce Hoffman, Jr." <rbruceh@xxxxxxx>
  • Date: Wed, 24 Mar 1999 15:32:05 -0500

Colin Williams wrote:
> I thought that all temporary PTF's had to be either removed or
> permanently applied before an upgrade?

No, not true.  It is *recommended* that you apply all PTFs *perm prior
to install of a new release, but not necessary.

As for the remove, unless IBM *specifically* tells me to remove a PTF or
set of PTFs prior to an install, I would definitely NOT recommend
removing ANY.  The reason?  There have been quite a few PTFs related to
loading and applying other PTFs, PTFs that correct problems with tape
drives, PTFs that alter the way disk storage is allocated, mapped,
tracked and used.  Remove one of these prior to install and you could
have more than a mess on your hands.

In my experience, the time required to put the PTFs on *perm is better
spent putting on the new release.  I have never gone out of my way to
permanently install PTFs prior to a release upgrade with the exception
of V3R1M0.  That was a space issue only.  The only real, total failure
that I have had in an install, was a media error part way thru the LIC
tape.  That left a vegatable machine requiring a scratch re-install,
but  had nothing to do with the PTFs being applied *perm or *temp.

R. Bruce Hoffman, Jr. -- IBM Certified AS/400 Administrator

-- The sum of all human knowledge is a fixed constant.
    It's the population that keeps growing!
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