Dear SCO Customer,

Support Level Supplement (SLS) ptf7634a, the UnixWare 7 mtrr Driver
Supplement, addresses the problem of a memory leak in the mttr driver 
which may cause misprogrammed MTTRs or other problems.


Contents
--------

        /etc/conf/pack.d/mtrr/Driver.o


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

SLS ptf7634a should only be installed on:

        UnixWare 7 Release 7.0.0, 7.0.1, 7.1.0, 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NOTE:  This supplement has been superseded by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


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

1. Download the ptf7634a.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/ptf7634a.Z
        # pkgadd -d /tmp/ptf7634a
        # rm /tmp/ptf7634a

Alternatively, SLS ptf7634a 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/ptf7634a.Z
        # pkgadd -qd /tmp/ptf7634a all
        # rm /tmp/ptf7634a

3. Reboot the system after installing this SLS package.

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

        /var/sadm/pkg/ptf7634/install/ptf7634.txt


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

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

        $ su
        Password: <type your root password>
        # pkgrm ptf7634

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.