Dear Caldera Customer,

Support Level Supplement (SLS) ptf7045h, the Intel Microcode Driver
for UnixWare 7, provides the proper microcode fixes to the system's
Pentium Pro, Pentium II, Celeron, Pentium II Xeon, Pentium III, and 
Pentium III Xeon processors.

SLS ptf7045h provides the latest processor errata microcode from the 
Intel Corporation.  SLS ptf7045g provided the functionality listed below.
SLS ptf7045f added the ability to perform a quiet install.  SLS ptf7045e 
provided January 2000 P6 microcode updates from Intel.


SLS ptf7045g addresses all of the issues listed below:

1.  Some models and steppings of the Intel Pentium Pro processor,
    Intel Pentium II processor, Intel Pentium II Xeon processor,
    Intel Pentium III processor, Intel Pentium III Xeon processor,
    and Intel Celeron processor may contain design defects or errors
    known as errata, which may cause the processor to deviate from
    published specifications.

    Some of these errata can be fixed by updating the microcode of the
    processor at system startup.  This SLS installs microcode updates
    provided by the Intel Corporation to do that.


2.  An Intel Pentium III or Pentium III Xeon processor has a Processor
    Serial Number, which can be accessed by software using the "cpuid 3"
    instruction.  However, some administrators prefer that their systems
    cannot be identified in this way.

    When installing this SLS on UnixWare 7.1.0, 7.1.1 or NSC 7.1.1,
    you may choose that Processor Serial Numbers be erased, immediately
    and whenever the system reboots.  UnixWare 7.1.1 disables Processor
    Serial Numbers unless ENABLE_PSN=YES in /stand/boot.



SLS ptf7045h updates Intel P6 microcode, dated May 1, 2001.

Contents
--------

   /etc/conf/node.d/msr
   /etc/conf/pack.d/msr/Driver.o
   /etc/conf/mdevice.d/msr
   /etc/conf/sdevice.d/msr
   /etc/p6updata
   /sbin/p6update


Software Notes and Recommendations
----------------------------------

SLS ptf7045h should only be installed on:

 UnixWare 7 Release 7.1.0, 7.1.1
 UnixWare 7 NonStop Clusters Release 7.1.1

NOTE:  This supplement has been superseded by
the UnixWare 7.1.1 Maintenance Pack for UnixWare 7.1.1 platforms
only.  The UnixWare 7.1.1 Maintenance Pack is available from:

       ftp://ftp.caldera.com/pub/unixware7/uw711pk


SLS ptf7045h supersedes all previous versions of ptf7045; however,
it is not necessary to remove any previous versions of ptf7045 prior
to installing SLS ptf7045h.

Any P6 microcode updates needed are applied when ptf7045h is installed,
and by "/sbin/p6update" after the system has run "/sbin/psradm -n -a" to
online all processors (on entry to init state 1, 2, 3 or 4).  If the
installer chose to erase Processor Serial Numbers, that is done at the
same time.

SLS ptf7045h is only of benefit if your processor is a genuine Intel
processor of the P6 family: Pentium Pro, Pentium II, Pentium II Xeon,
Pentium III, Pentium III Xeon, or Intel Celeron processor.  However,
ptf7045h can be safely installed on all other processor types.

If your system is running any libraries or commands that are
contained in this SLS, then these programs will continue to run
with the old versions of these libraries or commands until the
the system is rebooted.

Note that when all necessary patches have been installed, you should
reboot the system at the earliest opportunity.  This will ensure that 
no programs continue to run with the old libraries or commands.


Installation Instructions
-------------------------

1. Download the ptf7045h.Z file to the /tmp directory on your machine.


2. As root, uncompress the file and add the SLS package to your system
   using these commands:

    $ su
    Password: <type your root password>
    # uncompress /tmp/ptf7045h.Z
    # pkgadd -d /tmp/ptf7045h
    # rm /tmp/ptf7045h

Alternatively, this SLS package may be installed in quiet mode,
that is, without displaying the release notes and asking for
installation confirmation.  To do this, use these commands:

    $ su
    Password: <type your root password>
    # uncompress /tmp/ptf7045h.Z
    # pkgadd -qd /tmp/ptf7045h all
    # rm /tmp/ptf7045h


3. There is no need to reboot the system after installing this SLS package,
   but the kernel may be rebuilt when the system is next rebooted.

   The release notes displayed prior to installation can be found in:

    /var/sadm/pkg/ptf7045/install/ptf7045.txt


Removal Instructions
--------------------

1. As root, remove the SLS package using these commands:

    $ su
    Password: <type your root password>
    # pkgrm ptf7045


2. Reboot the system after removing this SLS package.


If you have questions regarding this SLS, or the product on which
it is installed, please contact your software supplier.