Dear SCO Customer,

Support Level Supplement (SLS) ptf7680a, the SCO UnixWare 7.1.0 or 7.1.1
ttymon supplement, addresses the following problems:

1. Disable does not halt the login process once there has been any
   IO on the port.

Note that SLS ptf7680a supersedes ptf7423a, which addressed the
following:

2. On UnixWare 7.1.0, logging in over a modem using cu(1bnu) fails when
   the port is configured for bidirectional (incoming and outgoing) use.


Contents
--------

        /usr/lib/saf/ttymon


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

ptf7680a should only be installed on:

        UnixWare 7.1.0 or 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NOTE:  This supplement has been superseded by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



Note that SLS ptf7680a supersedes ptf7423a.  It is not necessary to
remove this SLS prior to the installation of ptf7680a.
  

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

1. Download the ptf7680a.Z file to the /tmp directory on your machine.

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

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7680a.Z
        # pkgadd -d /tmp/ptf7680a
        # rm /tmp/ptf7680a

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

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7680a.Z
        # pkgadd -qd /tmp/ptf7680a all
        # rm /tmp/ptf7680a

3. There is no need to reboot the system after installing this package.

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

   /var/sadm/pkg/ptf7680/install/ptf7680.txt


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

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

        $ su
        Password: <type your root password>
        # pkgrm ptf7680

2. There is no need to reboot the system after removing this package.


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