OS/2 Professional/OS2PRO194.ISO/os2/info/faq/os2_20/os2help/doscdrom.fax

Text File | 1992-09-17 | 5.7 KB | 130 lines

CD-ROM HELP INFORMATION
-----------------------

The purpose of this file is to give IBM customers a basic idea of what
is needed to get many of the OS/2 2.0 unsupported CD-ROM drives working.
Note, the following description does not cover all scenerios, just a
brief overview.  This is not a highly detailed explanation of what
do to, and is meant to assist experienced PC users.  Your configuration
may, and probably will, vary.

What you will need:
a. A DOS 5.0 bootable diskette or hard drive with the FORMAT command
 in its path.
b. MSCDEX.EXE v2.21, dated 2-4-92, size 25431 bytes. If you do not have
 this file please contact your CD-ROM vendor for it.
c. A CD-ROM driver file for your specific CD-ROM drive, it will have a
 .SYS suffix.  Contact your CD-ROM vendor for this file if you do
  not have it.

Please look at the following general steps, your setup my vary:
1. create a VMB (e.g. DOS 5.0 Boot diskette ). A DOS 5.0 image is
 preferable because of the new MSCDEX.EXE ver 2.21.
 IBM has another FAX which details how to do this called VMB.FAX in
 the internal DOSAP directory.
 Use the FORMAT A: /S command when in real DOS with a blank diskette
 in the A: drive to create a DOS bootable diskette.  Note that you
 cannot issue the FORMAT command from within an OS/2 VDM.

2. On this diskette place the following files as your setup requires:
 a. config.sys
 b. autoexec.bat
 c. command.com (will be included when the DOS Boot diskette is made)
 d. fsfilter.sys (from the \os2\mdos directory)
 e. mscdex.exe (v2.21 which does not require the setver.exe)
 f. the name of the CDROM device driver from your vendor (e.g. IBMCDROM.SYS)

3. These are the following statements you need in your config.sys:
 SHELL=A:\COMMAND.COM /P /E:1024
 DEVICE=A:\FSFILTER.SYS
 LASTDRIVE=Z
 DEVICE=A:\CDROM-Device-Driver-Name-and-Parmeters
  replace the CDROM-Device-Driver-Name-and-Parameters with the
  name of your CD-ROM vendor's driver.  For example:
  DEVICE=A:\IBMCDROM /D:IBMCD001

4. These are the statements you need in your autoexec.bat:
 SET COMSPEC=A:\COMMAND.COM
 PROMPT $P$G
 MSCDEX /D:Specific-Parameters-for-the-CDROM-Drive
  Most often this entry will look similar to MSCDEX /D:IBMCD001
  but may have additional parameters as specified in your
  CD-ROM vendor's documentation.  Call your CD-ROM vendor for
  exact details.  Most often the /D: parameter specifies the
  name of the device driver file from step 3, but not always.

5. Now OPEN the SETTINGS for the VMB program object you created in
 step 1.  Go to the session tab, click on DOS_SETTINGS. Click the
 DOS_STARTUP_DRIVE entry, place the drive letter from which the
 VMB diskette will boot from, or the path and name of the image file
 you may have created using the VMDISK command (see online help for
 that one).  Most often this entry should be:  A:
 Close the settings window(s).

6. Double-click mouse button 1 (left mouse button usually) on that
 VMB program object.  Your drive drive should now boot, or load
 the image file into memory, load all of the drivers, and you'll
 have access to your CD-ROM drive.

7. If this works fine, and you have created a VMB diskette and are using
 that, you can create an IMAGE of the disk to boot from your hard drive.
 Type HELP VMDISK from an OS/2 command prompt for more information.
 You will need to change the DOS_SETTINGS for your program object
 under DOS_STARTUP_DRIVE to point to the path of your newly created
 image file, for example: C:\OS2\CDBOOT.IMG.

Good luck!

-------------------------------------------------------------
The following information was pulled from online services and
does not represent IBM factual information and is here for
informational purposed only.  IBM cannot and will not answer
questions about the information listed below.  Thanks!
-------------------------------------------------------------
The following is provided for a user who lost their reference book.
Parameters for the SONY 535 CD-ROM drive...

In my config.sys I have:

DEVICE=C:\CDROM\SONY_CDU.SYS /D:MSCD210  /M:D /T:3 /Q:*

the default setup is

DEVICE=C:\CDROM\SONY_CDU.SYS /D:MSCD210 /U:1 /B:340 /M:H /Q:* /T:*

The /d: is the device name. Must be the same as in MSCDEX
{ /U:n }  number of Drive daisy changed. Is optional
{/B:XXX} Base address of CD HOSTADDRE default is 340.
{/M:mode} Mode for data transfer. 'D' for DMA, 'P' for software transfer
      'H' for high speed transfer (fast CPU).
      It says H is default for AT's and up, P is default for XT machines.
{/T:drq} If using DMA, This specifies the DRQ channel number for the Host
   adapter will use. * means don't use.
{/Q:irq} Specifies IRQ channel number to use. * means dont use.

In my AUTOEXEC.BAT I have

 MSCDEX.EXE /e /D:MSCD210 /M:10 /L:S /V

DEFAULT should be
  MSCDEX.EXE /D:MSCD210 /E /M:4 /L:S /V

/D: Is the device name. Must match the onein the config.sys
/M:X Species how many DOS buffers to use. The suggested minimum is 4-5
/V says to display informnation about the CD
/L:X  SPECIFIES Which letter to  give to the cd (like c:, D: ...)
/E:  says to use expanded memory.

Almost forgot that you need the following line in your config.sys if you
want to use a letter like 's:'

LASTDRIVE=W

-------------------------------------------------------------------------------
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