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1996-05-26
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ExtenDOS Pro Patch Archive 24A
This patch archive will update version 2.3/2.3A/2.4 of
ExtenDOS Pro to version 2.4A. If you have version 2.1
or 2.2, you must first obtain EPRO_23A.ZIP which updates
2.1 or 2.2 to 2.3A. If you have version 2.0, you must
first obtain EPRO_210.ZIP which updates 2.0 to 2.1.
Introduction
============
This patch updates Anodyne Software's ExtenDOS Pro package from
version 2.3/2.3A/2.4 to version 2.4A. After applying this patch,
you will have the following versions of these ExtenDOS Pro
modules:
CD.BOS 2.4A
CDAUDIO.ACC 2.4
CDAUDIO.PRG 2.4
DISC.RSC 2.4
EXTENDOS.PRG 2.4
EXTINFO.PRG 2.4
INSTALL.APP 2.4
INSTALL.RSC 2.4
UNIDRIVE.DOS 2.4A
UNI_BDDS.DOS 2.4A
NOTE: This patch program is designed to update your ExtenDOS Pro
_distribution_ diskette to version 2.4A. Once you have completed
the update, you will need to install the updated version using
INSTALL.APP v2.4. The entire process is explained below under
"How to update".
Any questions or comments, please contact us at:
Anodyne Software, 6 Cobbler Court, Ottawa, Ontario K1V 0B8, Canada.
GEnie: R.BURROWS1
Internet: anodyne@magi.com or r.burrows1@genie.com
Archive contents
================
This archive contains the following files:
PATCH24A.TOS Patches the main ExtenDOS Pro modules
CHECKIT.TOS Checks the patched files
CHECKIT.CTL Control file for CHECKIT.TOS
READ.ME Important documentation on version 2.4A
READ_ME.1ST This file
These files are copyright ╜ 1996 by Roger Burrows. All rights are
reserved. These files may be freely distributed to all legitimate
registered users of ExtenDOS Pro.
Do I need to update ?
=====================
. You _must_ update if you wish to access your CD-ROM drive from
the MagiC4 desktop
. If you are currently running version 2.4, we _strongly_ recommend
that you update, since this fixes some significant bugs in 2.4
(see below for more information)
Even if you are currently using a version prior to 2.4, and you do not
use the MagiC4 desktop, we still recommend that you perform the update,
since this update adds some new features, and fixes some problems in
earlier versions.
What is needed to update
========================
. This archive file, and:
. An ExtenDOS Pro distribution disk, version 2.3, or
. An ExtenDOS Pro distribution disk, version 2.3A, or
. An ExtenDOS Pro distribution disk, version 2.4
You also need a double-sided floppy drive formatted to 800K
(10 sectors per track) or at least 800K of free space on a hard
disk drive. Due to the size of the files involved, you will not
be able to carry out the update on a single-sided drive.
How to update
=============
1. Copy your ExtenDOS Pro distribution disk EITHER to an empty
double-sided disk OR to an empty folder on a hard disk with at
least 800K free space. In the following instructions, this
area will be referred to as the "update work area".
2. Delete the following files (if present) from the update work
area:
SCSI.TXT
SCSI_FAQ.TXT
This is needed to provide sufficient work space.
3. Copy the PATCH24A.TOS file to the update work area.
4. Run PATCH24A.TOS from the update work area, by double-clicking
on it from the desktop. For each of the files that need to be
updated, the program will create a backup copy of the original
file (with a .BAK extension), update the original file to the
v2.4A level, and then delete the backup copy.
If you are updating from v2.4, the following files will be
updated:
CD.BOS
UNIDRIVE.DOS
UNI_BDDS.DOS
The final message should be "3 modules patched successfully".
If you are updating from v2.3 or v2.3A, the following files
will be updated:
CD.BOS
UNIDRIVE.DOS
UNI_BDDS.DOS
CDAUDIO.ACC
CDAUDIO.PRG
DISC.RSC
EXTENDOS.PRG
EXTINFO.PRG
INSTALL.APP
INSTALL.RSC
The final message should be "10 modules patched successfully".
If you encounter any problems, please read the error messages
carefully; they should indicate what the problem is. You will
probably need to begin the entire patch process again. If you
cannot resolve the problem, please see below under "If you get
an error message".
5. Delete the following files from the update work area:
PATCH24A.TOS (no longer required)
6. Replace the following files in the update work area with the
corresponding files from this archive:
READ.ME
7. (Optional, but recommended)
Copy CHECKIT.TOS and CHECKIT.CTL to the update work area, and
double-click on CHECKIT.TOS. It will perform a simple checksum
verification on each of the files you updated or replaced in
step 4 above. You should see the message "verified OK" for
each of the ten files. If so, please delete CHECKIT.TOS and
CHECKIT.CTL from the update work area.
If you get any messages indicating that a module failed to
verify, it's probable that your newly-updated copy of ExtenDOS
Pro is invalid. Try obtaining another copy of this archive and
redoing the update. Alternatively, you can have your disk
updated by Anodyne Software: please see below under "If you get
an error message" for how to order the update.
8. Congratulations! You have completed updating the files in the
update work area. Now, for safety, first copy them to a backup
floppy disk. Then, delete all of the existing files from the
ExtenDOS Pro distribution disk, and copy the files from the
update work area to the distribution disk. Finally, remove all
the files from your update work area.
** VERY IMPORTANT STEP, READ CAREFULLY **
9. To install this version on your system, use the new INSTALL.APP
program on your (updated) distribution disk; the READ.ME file
on the updated disk explains how to do this.
10. Please take the time to read the new READ.ME file carefully.
It contains information about all the new features of ExtenDOS
Pro v2.4A.
If you get an error message
===========================
If you get an error message during the patch process and cannot
resolve the problem, you can mail us the disk so that we can
update it.
To have your disk updated by us, you need to:
1. Send in your original ExtenDOS Pro distribution disk.
2. Enclose a cheque or money order for $5 + $2 shipping & handling
($7 total). You may pay in Canadian dollars if you are located
within Canada; all payments for shipments outside Canada must
be in US dollars.
3. Enclose a note with your name, address, and phone number.
In return you will receive a disk containing ExtenDOS Pro v2.4A.
Changes for v2.3A compared to v2.3
==================================
New features
------------
None
Bug fixes
---------
1. The CDaudio volume control is now displayed properly in ST Low and
Medium resolution.
Changes for v2.4 compared to v2.3A
=================================
New features
------------
1. Supports the extended GEMDOS calls (a la MiNT) that the MagiC4
desktop uses. This allows access to CD-ROMs from the MagiC4
desktop.
2. Before attempting to read a CD-ROM, ExtenDOS Pro checks for the
presence of an audio CD. If so, a volume label of 'AUDIO-CD' is
returned (this will be displayed by the MagiC4 desktop and will
act as a reminder). Also, any attempt to access data on the disk
will be rejected with the GEMDOS error 'path not found', thus
preventing interruption of any current audio playback.
3. Read errors now cause additional retry attempts, thereby increasing
the likelihood of successful reads under adverse conditions.
4. Now supports the following additional drive:
Drive Device type Audio PhotoCD
----- ----------- ----- -------
Nakamichi MBR-7 120 Y Multi
The device type for the Chinon 525 has been changed to 53.
5. Additional checking for a CD-ROM change is now done for all Sanyo
drives. This is designed to circumvent a problem in the firmware
on at least some Sanyo drives: they do not report media change.
Bug fixes
---------
1. If the year in the file date on a CD-ROM is less than 1980, the
TOS time/date is returned as 1980/01/01 00:00:00 rather than
something strange.
2. The SCSI bus is reset under some additional timeout conditions;
this increases the likelihood of recovery from these conditions.
Changes for v2.4A compared to v2.4
==================================
New features
------------
None
Bug fixes
---------
1. Older (SCSI-1) NEC drives can now access data CDs successfully.
2. ST/STe systems will not get address errors when initialising
ExtenDOS Pro or accessing a new CD-ROM.
Both these problems were introduced in v2.4 :-(.