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PAT321.TXT
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1993-09-17
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92 lines
NOVELL TECHNICAL INFORMATION DOCUMENT
TITLE: Patch to Fix Errors Returned by INT 25H, 26H
DOCUMENT ID: TID000263
DOCUMENT REVISION: A
DATE: 01JUL93
ALERT STATUS: Yellow
INFORMATION TYPE: Symptom Solution
README FOR: PAT321.EXE
NOVELL PRODUCT and VERSION:
DR DOS 6.0 4/92
ABSTRACT:
This patch fixes a problem where the error codes returned by INT 25h and
INT 26h were incorrect for "drive not ready" and "write protect" errors.
_________________________________________________________________
DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO NOVELL.
NOVELL MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY THIS INFORMATION.
HOWEVER, THE INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION
ONLY. NOVELL MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS
INFORMATION.
_________________________________________________________________
Self-Extracting File Name: PAT321.EXE
Files Included Size Date Time
PAT321.TXT (This File)
IBMDOS.321 39239 2-19-92 3:21a
README of PATCH321.EXE
Product: DR DOS 6.0
Description: This patch fixes a problem where the error codes returned
form INT 25h and INT 26h for "drive not ready" and "write protect" errors
were incorrect.
ASSUMPTIONS:
1. The file IBMDOS.321 is in the root directory of your C:\ drive.
2. TaskMAX is not loaded.
INSTALLATION INSTRUCTIONS:
1. Remove the attributes from the current working copy of IBMDOS.COM
From the C prompt:
Type: ATTRIB -RSH IBMDOS.COM
Press <ENTER>
2. Make a backup copy of IBMDOS.COM
Type: COPY IBMDOS.COM C:\DRDOS\IBMDOS.OLD
Press <ENTER>
3. Replace the original IBMDOS.COM with the patched IBMDOS.321
Type: COPY IBMDOS.321 IBMDOS.COM
Press <ENTER>
4. Verify the copied file is the correct size, date and checksum
Type: CD \
From the C prompt:
Type: XDIR IBMDOS.COM /C
Press <ENTER>
The following message will display:
--a--- 39,239 2-19-92 3:21a 947B c:ibmdos.com
NOTE: In Archive attribute (a) may be set, however it is not a required
attribute.
5. Replace the System, Hidden, Read-Only attributes on IBMDOS.COM
Type: ATTRIB +RSH IBMDOS.COM
Press <ENTER>
6. Reboot the computer.