Carl S. Gutekunst csg at pyramid.pyramid.com 
Fri Dec 9 08:58:39 AEST 1988
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In article <264 at texbell.UUCP> root at texbell.UUCP (Greg Hackney) writes:
>In trying to run layers on an AT&T 615mt windowing terminal, an error message
>indicated that the terminal had an incompatible firmware version.
>
>As I understand it, the package is supposed to check the firmware version,
>and download code into the terminal if necessary.

layers insists that a layersys download file exist for every type of layers
terminal, whether one is needed or not. The 615, 620, and 630 don't need a
download file; so you just create one of zero length. 

The layersys download files are in the directory /usr/dmd/lib/layersys/; my
directory looks like this:

-rw-r--r--  1 bin             0 Apr 28  1987 /usr/dmd/lib/layersys/lsys.8;0;5
-rw-r--r--  1 bin             0 Mar  2  1988 /usr/dmd/lib/layersys/lsys.8;4;5
-rw-r--r--  1 bin        150810 Mar  2  1988 /usr/dmd/lib/layersys/lsys.8;7;3
-rw-r--r--  1 bin             0 Mar  2  1988 /usr/dmd/lib/layersys/lsys.8;7;5
-rw-r--r--  1 bin             0 Mar  2  1988 /usr/dmd/lib/layersys/lsys.8;8;5
-rw-r--r--  1 bin             0 Aug 14  1987 /usr/dmd/lib/layersys/lsys.8;8;6

The lsys.8;0;5 file is the one needed by the 615. The one non-zero file is for
the early versions of the 5620.

This is also the file list being shipped with the OSx 4.4 release of the DMD 
software. If you don't have the latest version, you should get it; there have
been some important bug fixes. There is also a PTF for OSx 4.4 to fix a bug in
the handling of "encoding" mode. 

<csg>