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Appendix B MCMaster Software Utilities 25
MCMaster User’s Guide - Rev. B06 Kingston Technology Company
For OS/2 1.2 and pre-1991 OS/2 1.3
DISK02.SYS is a replacement for the driver supplied with OS/2. If you're not
absolutely certain which driver you need, it would be a good idea to copy the
DISK02.SYS file now on your hard drive onto a floppy for safekeeping. Install
the new DISK02.SYS file by just copying the file DISK02.SYS from the
MCMaster option diskette into the root directory of your boot drive. When you
reboot OS/2, the driver will load automatically.
For OS/2 1.3 with a copyright date of 1991 or later
Leave the existing DISK02.SYS in place. Copy the file OEMXLAT.SYS from
the MCMaster option diskette into the root directory of the boot drive. This
version of OS/2 automatically looks for the driver at boot time and, if it finds it,
loads it.
OS/2 2.0 and higher
With OS/2 2.0 and higher (2.x), IBM has built-in support for the MCMaster so
that the kernel finds MCMaster memory and locates itself there, regardless of
where the MM memory is in the map. For this reason, the performance of
"Mapped" and "Unmapped" will be about equal under OS/2 2.x.
When installing OS/2 2.x on a PS/2 Model 50 or 60 and the OS/2 installation
"chokes" on the second diskette, use INSTOS2.EXE contained on the Kingston
MCMaster diskette.
Follow the steps below to use INSTOS2:
1. Boot into DOS (any version) from a hard disk or floppy diskette. Be
sure to boot DOS without EMM386 or any other memory manager.
2. Insert the MCMaster option disk into the floppy drive.
3. Run the program by typing:
A:INSTOS2 [Enter]
4. Your screen should display the following:
This program is used to modify the way the floppy
slowdown is done to assist in installing certain
versions of OS/2 on some machines.
Copyright Aox Inc. 1993. All rights reserved
OS/2 is a trademark of IBM.
Put OS/2 install diskette in and press ENTER key
to boot, or
Esc to exit.
5. Insert the OS/2 Install diskette and press [Enter]. Installation will
proceed normally.