Dear Caldera Customer,

Support Level Supplement (SLS) ptf7438g, the UnixWare 7 Network Printing
Supplement, addresses the following known problems encountered with 
printing commands under UnixWare 7.

SLS ptf7438a addressed these issues:

1. Spooling a job using the lp command to a remote bsd printer 
   can return this message:

        UX:lp: ERROR: No space to allocate temp files.
        UX:lp: TO FIX: Clean up disk, or try again later.

2. Under heavy load, lpsched can core dump (lpNet remains). This problem 
   is commonly seen if "lpstat" is run many times to retrieve the current
   print job status from multiple remote bsd printers with jobs outstanding 
   and where some of the printers cannot be accessed; possibly due to being 
   offline or in the process of printing.

3. 'lpsched' can core dump when executing the lp command to print many files 
   with very long filenames.


SLS ptf7438b addressed these issues:

4. The lpsched binary provided with SLS ptf7438a failed with dynamic 
   linker error - setegid() when trying to print a job on UnixWare 7.0.0 
   and 7.0.1.

5. Occasionally, 'lpsched' stops printing the remote printer requests. 
   The only way to restart it is to run 'lpshut' and then restart 'lpsched'.


SLS ptf7438e addresses this issue:

6. If a user cancels a job submitted to a remote system that is down
   or unreachable, the job will be shown as canceled in lpstat but will
   not be removed.  lpsched will continue to attempt to send it to the
   remote system.

SLS ptf7438f addresses this issue:

7. Cannot lpd print to svr4 after upgrading to 7.0.1.

8. After canceling a job from UnixWare and switching off the printer and
   print server (to clear their buffers) when switching the printer and
   print server back on, the print job will start over from the beginning.  
   This problem occurs only with print servers that do not have spooling.


SLS ptf7438g address this issue:

9. Two minutes after printing a job to a remote printer, lpsched
   sends a status request to that printer.  If the printer is not
   available, it resends the status request.  Moreover, after
   every 2 minutes, it generates a new status request message to
   be sent to that printer. The end result is that first, a lot
   of bandwidth is wasted and second, when the printer becomes
   available again, lpsched becomes busy in sending those duplicate
   status request messages.  The actual print jobs thus got delayed
   and this can appear to be a hang to the user.

10. With ptf7438f installed, lpsched can coredump when printing
    to a BSD printer.                                                   

Contents
--------

        /usr/lib/lp/lpNet
        /usr/lib/lp/lpsched


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

SLS ptf7438g 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



Note: SLS ptf7438g will only install if the Network Support Utilities (NSU)
      package has also been installed.

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, it is
recommended that you 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. lpsched should not be running during the installation of this SLS.
   Prior to installation, stop printing services using this command:

        /usr/lib/lpshut

   Once SLS ptf7438e has been installed, printing can be restarted using 
   this command:

        /usr/lib/lpsched

2. Download the ptf7438g.Z file to the /tmp directory on your machine.

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

        $ su
        Password: <type your root password>
        # uncompress /tmp/ptf7438g.Z
        # pkgadd -d /tmp/ptf7438g
        # rm /tmp/ptf7438g

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/ptf7438g.Z
        # pkgadd -qd /tmp/ptf7438g all
        # rm /tmp/ptf7438g

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

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

        /var/sadm/pkg/ptf7438/install/ptf7438.txt


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

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

        $ su
        Password: <type your root password>
        # pkgrm ptf7438

2. There is no need to 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.