BusLogic LADDR Support for IBM OS/2 1.3
	---------------------------------------

This installation note outlines the steps needed to install BusLogic's
OS/2 1.3 LADDR device driver under IBM OS/2 version 1.3. The installation
procedure will "ladderize" the IBM OS/2 system. Ladderizing replaces the 
original IO subsystem  on your OS/2 Install diskette or OS/2 installed
system with a LADDR IO subsystem.

The first section discusses installing the BusLogic driver at the 
time of initial OS/2 1.3 installation. The following sections discuss
adding the BusLogic driver (and host adapter(s)) to an existing OS/2 1.3
system. In this case, (called a secondary installation) remember to:

 ***  Make a complete backup of your boot volume  ***

before attempting to ladderize.


I. BusLogic SCSI Host Adapter as Intended Boot Adapter


	This set of instructions assumes NO existing OS/2 1.3 
	system. It assumes you are doing an initial installation of 
	OS/2 1.3 onto a disk supported by a BusLogic SCSI host adapter.

	   o	Backup (Diskcopy) the OS/2 installation disk - it
		will be modified during this procedure.

	   o	Boot the backup copy installation disk.

	   o	At the first full screen when asked:
			"Enter to continue Or Escape to Exit"
	   	hit Escape.

	   o	After the A:\ prompt appears, remove the installation disk.

	   o	Insert the BusLogic SW-190 installation disk.

	   o	Type:
		   	A:			<enter>
		   	CD \OS213\IBM		<enter>

	   o	Determine the location of the ram disk created
	   	by the IBM install disk in the following manner:

		Type:		 
		 	  DIR X: 		<enter>

		   where X is a drive letter ,starting with C and 
	           continuing with ascending drive letters (i.e.,
		   C,D,E,...) UNTIL the following message appears:	
		
		      SYS0015: The system cannot find the drive specified.

		   The ram disk is the drive letter immediately BEFORE the 
		   current drive letter value.

		Examples: 
	
		   If DIR D: is the first drive letter to produce the error 
		   message above, then the ram disk is drive C:.

		   If DIR E: is the first drive letter to produce the error 
		   message above, then the ram disk is drive D:.


	   o	For Microchannel installations, type:

			GO  drive:  MCA		<enter>

	        where drive is the ram disk drive letter identified in
	        the step above.
	
		For ISA and EISA installations, type:
			       
			GO  drive:  ISA		<enter>

	        where drive is the ram disk drive letter identified in
		the step above.

	   o    When prompted to, remove the BusLogic SW-190 install 
		disk and insert the OS/2 installation disk. The OS/2
		installation disk will now be modified.

		Use this modified installation diskette for the rest
		of the installation.

	   o	Reboot the machine.

	   o	Continue as instructed with the installation.

	   o 	At the very end of the normal system installation,
	    	when the message "Remove the floppy from drive A:"
	    	appears, reinsert the modified installation diskette.

	   o	Reboot the machine.

	   o	At the first full screen when asked:
			"Enter to continue Or Escape to Exit"
	   o 	hit Escape.

	   o 	Type:

		   	HARD.cmd	<enter>

	   	This program copies the proper files to the hard disk.
	   	Failure to complete this step will result in a TRAP
	   	when attempting to boot from the hard disk.

	   o	Ladderized Installation is now Complete !
		Reboot the machine.



II. BusLogic MCA SCSI host adapter as Secondary (non-boot) Device

	This set of instructions assume  an existing OS/2 1.3 system 
	to which you wish to add one or more BusLogic MicroChannel SCSI
	host adapters.

	WARNING!!!  Back up the existing system before continuing to the
	next step!


	   o	Under OS/2, create an OS2 command window.

	   o	Insert the BusLogic 1.30 driver install disk in drive A:

	   o	Type:
		   	A:				<enter>
		        CD \OS213\IBM\IBM_130.MCA	<enter>
	   		SECONDAR			<enter>

	   o	Ladderized Installation is now Complete !
		Reboot the machine.


III. BusLogic ISA or EISA SCSI host adapter as Secondary (non-boot) Device

	This set of instructions assume  an existing OS/2 1.3 system 
	to which you wish to add one or more BusLogic ISA or EISA SCSI
	host adapters.

	WARNING!!!  Back up the existing system before continuing to the
	next step!

	   o	Under OS/2, create an OS2 command window.

	   o	Insert the BusLogic 1.30 driver install disk in drive A:

	   o	Type:
		   	A:	   			<enter>
		   	CD \OS213\IBM\IBM_130.ISA	<enter>
	   		SECONDAR			<enter>

	   o	Ladderized Installation is now Complete !
		Reboot the machine.


IV. Adding CDROM support

	o 	Install as described above.

	o       Insert the BusLogic SW-190 install disk in drive A:

	o	Type:
			MD C:\CDROM		<enter>

	o	Type:
			A:
			CD \OS213\IBM\CDROM	<enter>
			COPY A:*.* C:\CDROM	<enter>

	o	Edit config.sys - Insert the following three lines starting 
		at the first line of the file (or second line if the first
		line is "IFS=C:\OS2\HPFS.IFS /cache:64"):

		IFS=C:\CDROM\CDFS.IFS
		DEVICE=C:\CDROM\STDCDROM.VSD
		DEVICE=C:\CDROM\CDROM.TSD

	o	Exit your editor and type:

			COPY C:\CDROM\UCDFS.DLL to C:\OS2\DLL <enter>