Patch Management Question

From: Dan S. Freedman (
Date: Mon Jan 06 1997 - 08:26:32 CST

Thanks to all that responded.
Casper Dik <casper@holland.Sun.COM>
"Matthew Stier" <Matthew.Stier@MCI.Com> (Jeff Popp)
Alex Finkel <>
 "Coffindaffer, Virginia@MacPO1" <> (Roger Krinock)

  My original question was:

>Date: Thu, 02 Jan 1997 11:36:32
>From: "Dan S. Freedman" <>
>Subject: Patch Management Question
>Does anyone have any suggestions on cleaning up obsolete patches?
Currently I have all the recommended patches installed that came with
Solaris 2.4. I have since installed 2 patches (one being Jumbo Kernel patch
101945-41). This patch appears to have made many of the recommended patches
obsolete (including 101945-10). The command `showrev -p` shows that the
obsolete patches are still installed.
>I am wary about removing the obsolete patches because the removal process
might remove software packages that have been placed by the new patch
101945-41 and replace them with the unpatched software (assuming the old
software was saved during patch installation).
>I guess I could reinstall the patches that I need--to be on the safe side.
How do you guys usually take obsolete patches off the `showrev -p` list?
>Thanks for the help. Hope everyone had a nice holiday.
>Dan Freedman

There was no easy 100% safe way to do this.

The consensus is you cannot back out obsolete patches after new patches have
been installed. You have to back them out before the new patch is
installed. You can back out them out in the reverse installed order but
this is not recommended. A few suggestions included a program to give more
"friendly" output than the `showrev -p` and a program that automates backing
out and reinstalling patches. Since I am not running out of space on the
/var partition, I think I will just leave well enough alone. Thanks for the

Dan Freedman

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