Re: Apparently Hosed V5R3 Install - Resolution -- MIDRANGE-L

Jerry,

You'd be better served by getting rid of the custom commands...

As Bill alludes to, both the v5r4 and v6r1 Memo to users say:
"Programs that use customized versions of IBM-supplied commands
Some i5/OS functions that use IBM-supplied control language (CL)
commands that are not
library-qualified in this release might be changed in a future release
to specify a specific library,
*NLVLIBL or *SYSTEM, for the library qualifier. Applications that
depend on using their own version of
commands instead of the IBM-supplied commands might not work as they
had on earlier releases. These
applications should be changed to use the retrieve command exit point
(QIBM_QCA_RTV_COMMAND)
or the change command exit point (QIBM_QCA_CHG_COMMAND) command that
allow your exit
program to get control and possibly change the command that is used."

So if you depend on program and menus calling a customized version of
a command in a library higher than QSYS, the _will_ stop working in
the future.

The ability to replace an OS command and/or program with your own
version (even if it's just a customized versino of the IBM supplied
program) is basically a security hole.

Charles

On Fri, Feb 20, 2009 at 10:39 AM, Jerry Adams <Jerry@xxxxxxxxxxxxxxx> wrote:

Good point, Rob. The program that I run after OS upgrades takes this into consideration by re-creating the command in MODLIB and, then, applying the changes. Seems like, bearing your points and Bill's problem, that it would be prudent to (a) remove MODLIB from SysLibl, and (b) running the program to re-create the changes from scratch for both OS upgrade and PTF installs. Whether necessary in every case or not, it only takes a minute to do this so it's going onto my project plans.

Thanks.

Jerry C. Adams
IBM System i Programmer/Analyst
B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Friday, February 20, 2009 8:43 AM
To: Midrange Systems Technical Discussion
Subject: RE: Apparently Hosed V5R3 Install - Resolution

If a ptf tries to fix a command, then perhaps something was broken?
Meaning, Jerry, if you simply take MODLIB out of the system library list
when applying a ptf and put it back in after the ptf is applied then the
copy in QSYS will be fixed but not your copy in MODLIB. And you could
start having the issue. For example, let's say the CPP for CRTUSRPRF was
IBMPGM1 before the ptf and IBMPGMB after the ptf. And IBM deleted
IBMPGM1. Then your command would try to call IBMPGM1 and abort.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
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Kendallville, IN 46755
http://www.dekko.com

From:
Jerry Adams <Jerry@xxxxxxxxxxxxxxx>
To:
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date:
02/20/2009 07:55 AM
Subject:
RE: Apparently Hosed V5R3 Install - Resolution
Sent by:
midrange-l-bounces@xxxxxxxxxxxx

Bill,

Thanks for the follow-up. I, too, have a system library list with a user
library above QSYS, which contains modified (defaults) for some commands.
Never had a (known) issue before, but it seems prudent to add a step to my
project plan that specifies changing the list order before applying PTF's.

Thanks.

Jerry C. Adams
IBM System i Programmer/Analyst
B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Bill
Sent: Thursday, February 19, 2009 7:58 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Apparently Hosed V5R3 Install - Resolution

After spending over an hour with Software Support, we finally pinpointed
the culprit: there was a user library ahead of QSYS which contained a
number of commands. In this case, the important command was CrtUsrPrf.
One of the PTF's, and a verrry early one at that, specified a
parameter that did not exist at V5R1, thus the PTF blew up since the
process returned an error in the process. Once the library was moved to
the bottom of the System Library List, I was able to subsequently apply
the PTF(s).

Thanks to everyone for their suggestions.

Bill
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