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After having exposed the installation of the ICP Controller in chapters B and C as well as
that of the host-drives, we would now like to give you some hints and pieces of advice on
how to install IBM's operating system OS/2 Versions 2.x and Warp. Furthermore, we explain
how to install a CD-ROM drive (representatively standing for any other Not Direct Access De-
vice) under OS/2.
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The structure of the Host Drives, which have been installed with GDTSETUP (in chapter C),
is not known to OS/2. I.e., the operating system does not recognize that a given Host Drive
consists of a number of hard disks forming a disk array. To OS/2, this Host Drive simply ap-
pears as one single hard disk with the capacity of the disk array. This complete transparen-
cy represents the easiest way to operate disk arrays under OS/2; neither OS/2 nor the PCI
computer need to be involved in the administration of these complex disk array configura-
tions.
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Under OS/2, the ICP Controller can be operated in two different ways. It is either run by
GDT's BIOS (INT13H interface), or, alternatively, by the high performance driver
GDTX000.ADD (located on the GDT OS/2 disk). Correspondingly, there are two different
ways of installing OS/2 with the ICP Controller. At this point we would like to stress that
only by using the high performance GDTX000.ADD driver can the ICP Controller unfold its
full capacity under OS/2. We therefore recommend this operating mode. In order to be able
to use the GDTX000.ADD from the very beginning of the installation it has to be copied to
the OS/2 diskette #1. We recommend the following procedure:
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With MS-DOS (using DISKCOPY for example), create a copy of the OS/2 diskette #1.
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Copy GDTX000.ADD (using the COPY command) into the root directory of this new
floppy disk. To get sufficient free space on OS/2 diskette # 1, it may be necessary to erase
some files which are not needed for the installation procedure (for example not needed
*.ADD files)
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Insert the following line into the OS/2 CONFIG.SYS file of your DISK 1 copy:
BASEDEV=GDTX000.ADD /V
The position of the entry is irrelevant.
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As the OS/2 installation takes quite a long time, we suggest having a closer look at the
OS/2 installation manual
. During the installation you will be prompted to answer several
questions, for example whether you want to copy OS/2 on an already existing MS-DOS par-
tition, or whether you want OS/2 to have its own partition, or whether you want to install
the OS/2 Boot-Manager, etc. . After having decided on these options, you can start the in-
stallation beginning with DISK 1 of the copy set you have previously created.
The OS/2 installation itself is carried out according to the OS/2 installation program.
After having completed the installation, you should check that the OS/2 CONFIG.SYS file
created during the OS/2 installation contains the following line:
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