Dies ist ein Bugfix fr Intelboards mit Festplattenproblemen und fr IDE CD-ROM Laufwerke. Einsetzbar in OS/2 2.x und OS/2 Warp Version 3. Der IBM1S506.ADD wurde so modifiziert, daá er die HW auf Vorhandensein eines CMD-Chips prft. Ist einer vorhanden, l„dt der IBM1S506 nicht, sondern bergibt die Kontrolle an den CMD640x.ADD. Please add the line "BASEDEV=CMD640X.ADD" to your CONFIG.SYS file. If you are going to use these drivers on a version of OS/2 earlier than the OS/2 Warp MR release, you must also use the OS2DASD.DMD driver. Im BIOS sollte die Option PCI Prefetch Buffers auf disabled gesetzt werden !!! Installation if OS/2 2.1 or WARP is already installed on your fixed disk ------------------------------------------------------------------------ 1. you must run Selective Install to install the files for the OS/2 CD-ROM Device Manager and OS/2 CD-ROM File System. a. Open the OS/2 System folder on the desktop. b. Open the System Setup folder. c. Open Selective Install d. Select the CD-ROM Device Support check box e. Select OK f. Scroll to the bottom of the CD-ROM device list table and select the choice OTHER (OS/2 2.1) or Non-listed IDE CD-ROM (WARP) g. Select OK h. Select the OK push button to proceed from the System Configuration screen to the OS/2 Setup and Installation window i. Select Install j. When prompted to do so, insert the numbered installation diskette. 2. Copy the files provided in this package OVER those installed in step 1, to their proper location on your system. On Warp this is \OS2\BOOT. check by doing a 'DIR IBM1S506.ADD /S' on your system <== DIR command 3. IDE CD roms that adhere to the ATAPI specification of February 1994 will be detected automatically if they are configured on the Primary or Secondary IDE channel. If your IDE channel is not the primary or secondary, or if your IDE channel is not using the default io ports and IRQs, do a 'HELP IBM1S506.ADD' at an OS/2 command prompt to get detailed information on changing or adding channels. 4. Some drives do not respond to an ATAPI command from the February Spec. These drives can not be auto detected and require an additional parameter on the IBM1S506.ADD line in config.sys. The NEC 260 drive, for example, requires this additional parameter. BASEDEV=IBM1S506.ADD /A:x /U:y /ATAPI where x is the adapter number and y is the unit number. /A: Which IDE drive connector on your adapter contains the cable that the NEC 260 IDE drive is connected to IF you have only one IDE controller, this is Adapter 0, /A:0 IF you have TWO IDE controllers, and the IDE CDROM is connected to the second controller cable, this is Adapter 1, /A:1 The Enhanced IDE specifications allow for FOUR adapters, so /A: COULD also be 2 or 3 in your system. /U: Each IDE controller can drive up to TWO drives. If the CD drive is jumpered as the Master then this is unit 0, /U:0 otherwise it is unit 1, /U:1 /atapi or /ATAPI This informs the IBM1S506.ADD driver that this unit (/a: /u:) is an ATAPI (IDE attached) CDROM drive... Editing your config.sys... locate the BASEDEV=IBM1S506.ADD line If you have NO parameters on this line, then ADD the parms as defined above, /A:? and /U:? an example line with the CD as slave on controller 1 BASEDEV=IBM1S506.add /A:0 /U:1 /ATAPI IF you ALREADY have parms, and have a /A:? parm already, make sure to add JUST the /U:? parm for that adapter. 5. IF you are using OS/2 2.11 or earlier, you will need to add the following config.sys statement. (If you have WARP, choosing 'NON listed IDE CDROM' will cause this line to be placed in config.sys automatically) BASEDEV=IBMIDECD.FLT 6. Shut down and restart your system Installation if os/2 is NOT already installed on your fixed disk ---------------------------------------------------------------- 1. create the CD install disk 1 from the OS/2 CDROM 2. copy the files supplied here OVER the ones on disk 1. 3. If you have a NEC 260 IDE CDROM drive, edit the config.sys on disk 1 and modify the BASEDEV=IBM1S506.ADD line as described above (adding the /A & /U parms) 3a. IF you are using OS/2 2.11 or earlier, add the following statement to config.sys and copy the associated file onto disk 1. BASEDEV=IBMIDECD.FLT 3b. Insert the following Line in the Top of your Config.sys on Disk 1: SET COPYFROMFLOPPY=1 4. Boot the installation disk and disk 1 and proceed thru installation phase 1. 4a. If you are using WARP, proceed to step 7. 5. Because the installation program uses copies of these files from a packed file on the installation diskettes, the UPDATED drivers you copied in step 2 are overlayed with the older ones on your hard disk. You MUST manually fix this. When you are asked to reboot to continue the installation, insert the installation disk and press Ctrl-Alt-Del, then through disk 1 to the install panel. Press F3 to get to a command line. Go to the installation drive (wherever you installed OS/2). Copy the updated files (OS2CDROM.DMD, IBM1S506.ADD, and IBMIDECD.FLT from disk 1 to the proper location on the install partition) 6. type EXIT from the command line 7. remove the diskette from A: and reboot 8. Complete the rest of install