Dear SCO Customer,

Support Level Supplement (SLS) PTF4020A, the SCO UnixWare Dumpcheck Supplement,
enables the system administrator to configure dumpcheck to interrogate chosen 
devices to see if they contain a crash dump image. SLS PTF4020A resolves the 
problem where the system does not prompt to save the dump image after a panic 
on systems running Online Data Manager (ODM) with encapsulated, mirrored root 
disks because the mirrors are not synced due to the panic.

SLS PTF4020A adds a new file, /etc/dumptab, which is configured with 
dumpslice information. PTF4020A also provides a new version of dumpcheck 
that checks the devices in /etc/dumptab for dump images, and prompts to 
save the dump image if one is found.

/etc/dumptab uses the same syntax as /etc/swaptab [see swaptab(4) for more 
information] and is shipped with commented out default entries as follows:

        #dumpdevname            offset(in blocks)       size(in blocks)
        #/dev/dsk/c0b0t0d0s2            0                       -
        #/dev/dsk/c0b0t0d0s6            0                       -
 
The system administrator adds the appropriate device for the dumpslice in
the above format.
 
SLS PTF4020A contains: 

        /etc/dumptab
        /sbin/dumpcheck
        /sbin/dumpsave


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

SLS PTF4020A should only be installed on: 

        SCO UnixWare Application Server Release 2.1.0, 2.1.1, 2.1.2, 2.1.3
        SCO UnixWare Personal Edition Release 2.1.0, 2.1.1, 2.1.2, 2.1.3


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

1. Download the ptf4020a.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/ptf4020a.Z
        # pkgadd -d /tmp/ptf4020a
        # rm /tmp/ptf4020a

3. 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/ptf4020/install/ptf4020.txt


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

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

        $ su
        Password: <type your root password>
        # pkgrm ptf4020

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.