MICROCHANNEL CDROM SUPPORT Readme.txt Version .99 (Beta) By Brad Parker. Your mileage may vary. No guarantees! You will need to make a bootable disk for the operating system you want to install, generally by using the FORMAT /S A: command, where "A:" is the drive letter of the floppy you want to format and make bootable. Next unzip the file, or use the self extractor and point it at the bootable floppy. Make sure you recreate the directory structure contained in the files. If you are using a command line version of PKUNZIP, use the -d option to make the directories. Do not overwrite COMMAND.COM on your bootable floppy unless you are running Windows 95b. This disk has an "auto detection" feature which uses a "crash and burn" method- ology. It tries to load support for a given type of SCSI host adapter. If one is not found, it goes onto the next. NOTE: The order in which this "auto detection" feature tries the different drivers is critical. If you try to change the order you will eventually end up hanging depending on the type of adapter installed in your system. This partic- ular order has worked on every system I have tried it on. ANOTHER NOTE: The "auto detection" feature will probably have trouble with systems that have multiple SCSI adapters installed. It will try to load the drivers for the LAST SCSI adapter detected. If the CDROM is on another adapter, then you will have to choose the adapter with the CDROM from the menu. THIRD NOTE: If you choose to use the auto detection feature, you will have to press a key now and then to get past failed load attempts. This is mostly true for the attempts with Trantor and possibly the Future Domain adapters. TIP: If you know, or think you know, what type of SCSI host adapter is installed in your PS/2, and it has the CDROM connected to it, then choose that adapter from the menu. This will result (hopefully) in faster boot times, and should require no further response on your part. The following hardware is supported: Trantor, even works with Zip drives. Various IBM adapters, including Spock and Spock Prime, Fast SCSI-2, FW. Various CDs, including: CDROM1, CDROM2, Non-IBM, Stubborn. Limited ASPI support. I have NOT tested this with the RAID adapters. See the comments in the CONFIG.SYS file about enabling Stubborn CDROM support. Adaptec and clones. With ASPI support. Slow, but very compatible with ASPI devices. Future Domain, including OEMs like Reply. Optional ASPI and CAM support, see CONFIG.SYS. Buslogic and clones. IDE, Used with the on board IBM ATA type IDE adapter that is on the Lacuna pla- nar. Also should start most clones w/ an IDE CD-ROM. NOTE: May also work with the CMS and other MCA bus IDE adapters. This is not likely, and has not been tested. There is planned support for the Procom, as soon as I can get the time. If there are any other common adapters (common meaning you have seen more than one ex- ample in the wild) that you think should be included, drop me a line or send me an example (which will be returned). I AM NOT PLANNING ON SUPPORTING THE NCR SCSI ADAPTERS. That project can be someone else's life work.... Here are the version notes from the CONFIG.SYS and AUTOEXEC.BAT contained in the archives. CONFIG.SYS Notes: ********************************************************** * CONFIG.SYS WITH IBM MICROCHANNEL CDROM SUPPORT * * Version .99 (Beta) * * By Brad Parker. Your mileage may vary. No guarantees! * ********************************************************** **************************************************************** * Big changes in this version, added interactive menus, IDE * * support for Lacuna planars, and documentation SO I am * * changing the name of the parent file to: MCACDROM.ZIP * * NOTE: The ";" may not work with all operating systems. You * * may have to replace them with "REM". Semicolons look better. * * BIG NOTE: The utilities included with this version of the * * archive are mostly from Win95b. If you are going to be using * * these files with other versions of DOS, you may need to * * replace them with the equivalent versions of those utilities * * that ship with those operating system versions. A sure in- * * dicator of this is the "Incorrect DOS Version" error message * **************************************************************** ********************************************************************* * Multiple configuration options. This is supported by DOS versions * * 6.0 and higher, including Win 95 and Win 98. If you are using an * * earlier version of DOS you will have to modify this file, or live * * with the warnings of "unknown" commands etc... To fix just delete * * or comment out, the lines in the MENU block, anything in square * * brackets [] and any "INCLUDE=, "MENUITEM=", OR "SUBMENU=" * * statements. * ********************************************************************* AUTOEXEC.BAT Notes: ********************************************************* * AUTOEXEC.BAT WITH IBM MICROCHANNEL SCSI CDROM SUPPORT * * Version .99 (Beta) * * By Brad Parker. Your mileage may vary. No guarantees! * ********************************************************* ********************************************************************* * This file is used with the CONFIG.SYS file to get CDROM * * support for IBM Microchannel PS/2 computers. Please see the * * comments in CONFIG.SYS or the Readme file for more details. * * Note that I use the double colon (::) for remarks. It's faster * * and looks better than REM. It's faster because DOS only reads * * colons when it is looking for a label (colon is the label marker) * * in a GOTO statement. I don't use GOTOs (except in loops), so the * * colons are simply ignored. Everything is done using variables. * *********************************************************************