HP-UX HB v13.00 Ch-05 - SD-UX

HP-UX Handbook – Rev 13.00 Page 47 (of 49)
Chapter 05 Software Distributor (SD-UX)
October 29, 2013
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FEATURE
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Document Title
Date
Links
Part Number
Install and Update Guide
September 2011
[PDF]
BA927-90078
Read Before Installing
September 2011
[PDF]
BA927-90090
Release Notes
September 2011
[PDF]
BA927-90087
HP-UX Patch Management User Guide
September 2009
[PDF]
5992-6582
What is a “Line in the Sand” Patch?
A line in the sand patch is a kernel patch (PHKL) that combines many kernel fixes at once. The
intention is to have a base patch that puts the OS to a certain level. A line in the sand patch will
never be succeeded by another patch and there will only be one line in the sand patch for each
HP-UX release. HP asked all customers to install this patch so you should not find any system
without this patch.
Up to the present there are three of such patches:
PHKL_18543 UX 11.00 - s700_s800
Of course the object files, that are fixed with such a patch are subjected to change over time.
There are many newer patches that overwrite parts of it. This is not a problem as long as you
avoid reinstalling it. And this is exactly what happened lots of times in the past. Reinstalling a
line in the sand patch is not permitted since it puts the OS into a corrupted state resulting in
problems during kernel generation (see Kernel Chapter for an example).