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This is the first TOPS Software Update tape for  TOPS-20  KS
V4.1 and unbundled supported products.

TSU supports updates for BASIC-PLUS-2  V2A,  COBOL-20  V12C,
DBMS  V6.1, FORTRAN-20 V11, SORT-20 V4D, and bundled TOPS-20
V4.1 components including GALAXY.

We recommend that you start with  the  product  distribution
tapes  rather  than the previous Autopatch areas.  There are
control files in the first saveset to assist in  setting  up
product  areas.   For  this  first  tape  you should use the
TSUALL.CTL file to load updates from the TSU tape.

There are many files in the Language Sources saveset of  the
TOPS-20 distribution tape which require the BLISS-36 product
in order to compile.  If you do not have BLISS-36 or do  not
want  to  maintain  these  files, you may delete these files
from your update area.  There is a file (DELBLI.CMD) on  the
first  saveset  to  accomplish  this.  You also will need to
modify the TSUNEW.CTL and TSUALL.CTL  files  to  remove  the
verification process which uses the LNGSRB.VFY file.

The TSU update process does not  rebuild  products  at  your
site.  If you need to rebuild a product then you need to use
standard building procedures.  These are documented  in  the
installation  guides  for  the specific products.  Note that
standard pre-built components,  including  the  monitor  and
EXEC, are delivered on the TSU tape.

The DBMS V6.1 interface modules have been  included  in  the
CBLSRC  area.   The  TSU  process delivers a pre-built COBOL
compiler with DBMS enabled.  The library and OTS do not have
DBMS  support.  To reintegrate updated DBMS support into the
OTS and library submit the DBMS20.CTL file as  described  in
the DBMS Installation Guide.

All files for unbundled products are encrypted  on  the  TSU
tape.   Even  though the files have a normal name, they will
not function properly until they have been  decrypted.   The
TSUALL  and  TSUNEW control files will decrypt automatically
using the new APUTIL tool.  This tool uses file lists  which
are  supplied on the TSU tape.  The manual use of APUTIL, if
needed, is described in the TSU.MEM file.  You may also  use
the DCRYPT tool which is supplied on the TSU tape to decrypt
a file.  The required KEY files were shipped on  the  latest
product  distribution  tapes  or  have been recently shipped
separately to maintenance customers of record.

The TSU tape has three major sections, as described  in  the
TSU.MEM file.  The second section, NEW, contains files which
are new for this TSU tape.  The first TSU tape contains some
files  in  the  NEW  section  for products which have no new
edits.  This is a result of the new internal process we  are
using  to  gather  product updates.  The files have not been
previously delivered but do represent the latest  maintained

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state of the product.

All files in the NEW  section  also  appear  in  the  UPDATE
section.   For  this  first  TSU  tape  users  should create
directories for the desired products and use the  LODxxx.CTL
files  to  do  initial loading from distribution tapes.  The
TSUALL.CTL file is then  used  to  restore  files  from  the
UPDATE  section  of the TSU tapes.  For subsequent TSU tapes
the TSUNEW.CTL file is used to restore files  from  the  NEW
section  of  the  TSU  tapes.   Read  the  TSU.MEM  file for
details.

The SORT distribution is  included  as  part  of  the  COBOL
distribution.   The  SORT files are restored with the LODCBL
control file.  The LODSRT control file is only used with the
separate SORT distribution tape.

Both LODSRT and LODCBL use the  logical  BASE:   defined  as
TSU:<UPDATE>.   If  you  do  not  have  this  directory  the
definition of BASE:   must  be  changed  in  order  for  the
control files to function properly.

**IMPORTANT**

A monitor patch is required for the  proper  functioning  of
the  LODxxx.CTL  files  and  the  TSUALL  and TSUNEW control
files.   If  DUMPER  complains  with  "?Illegal  to   change
specified bits" you must do the following:

@enable
$get system:monitr
$st 140
DDT
wopr 1[   641057,,100000   641057,,700000
^z
$save system:monitr

or manually restore  either  TSU:[T20SYS]2020-MONMED.EXE  or
TSU:[T20SYS]2020-MONSML.EXE  from  the  second  save-set and
rename to system:monitr.

Either way the system must then be rebooted unless you  also
apply the same patch to your running monitr with MDDT.