+-----------------------+
    |			    |
    |	Drivers for UNIX    |
    |			    |
    +-----------------------+


  BEFORE INSTALLING THE DRIVERS OR MAKING ANY CHANGES; TURN OFF THE CACHE
  ON THE DC4030VL-2.  FAILURE TO DO SO CAN RESULT IN INCOMPLETE INSTALLATION.

  ******** Install UNIX Driver	********

  This driver is for AT&T UNIX SVR 4.0 and SCO UNIX 3.2.X.
  package. Please follow the steps below to install the UNIX driver:

   1. If you are running SCO UNIX, and

     1.1 If your diskette is inserted in diskette drive A:,
	 please type the following commands to copy
	 the installation shell script from diskette to hard disk.

	# cd /tmp
	# doscp a:/unix/ptiinst .
	# sh ./ptiinst a:

     1.2 If your diskette is inserted in diskette drive B:,
	 please type the following commands to copy
	 the installation shell script from diskette to hard disk.

	# cd /tmp
	# doscp b:/unix/ptiinst .
	# sh ./ptiinst b:


   2. If you are running AT&T UNIX SVR 4.0, and

     2.1 If your diskette is inserted in diskette drive A:,
	 please type the following commands to copy
	 the installation shell script from diskette to hard disk.

	# cd /tmp
	# doscp -m a:/unix/ptiinst .
	# sh ./ptiinst a:

     2.2 If your diskette is inserted in diskette drive B:,
	 please type the following commands to copy
	 the installation shell script from diskette to hard disk.

	# cd /tmp
	# doscp -m b:/unix/ptiinst .
	# sh ./ptiinst b:


   3. During installation, it will ask another blank diskette.
      Please insert that diskette as requested.

   4. The system will ask you for the IRQ of the secondary hard
      disk controller by the following question:

	 If you will install one Promise caching controller
	  as the secondary hard disk controller,
	  what is the IRQ of the secondary hard disk controller
	  in this system (12 or 15)? (default=15)

      Please choose the appropriate one according to the jumper setting
      of that controller.

   5. Done! if you are running AT&T UNIX SVR 4.0.

   6. If you are running SCO UNIX, type the following commands after
      the driver is installed.

	 # cd /
	 # shutdown -y -g0 -i6

      The commands will shutdown and reboot your system with the new kernel.

   NOTICE:
    1.) Primary controller means the hard disk controller with
	IRQ 14, and secondary controller is the hard disk
	controller with IRQ 12 or 15.
    2.) If you will install two Promise caching controller
	in the same system, please read the following:
	. After the machine has been powered on and the controller
	  has checked its memory size, you can press the function
	  key <F2> to enter the setup menu.  Then, press <F1> to
	  enter the Set-up Configuration submenu. Now you are ready
	  to setup the BIOS starting address.
	. The BIOS starting address of each Promise controller must
	  be different.
	  For example, you can set one BIOS starting address to be
	  dc000, and another to be c8000.


  ******** Add Secondary Hard Disks *******

  If you have attached more than one hard disk to the cable, you must
  do the following things to make this hard disk "visible" to the system.

  1. Please type the following command:

     # ptidiskadd

  2. The command will ask you of the following three questions:

	Which controller will the hard disk be attached to?

	 1. the primary controller
	 2. the secondary controller

	Please choose answer(1 or 2)(default=1):

	Which cable (of this controller) will the hard disk be attached to?

	 1. the first cable
	 2. the second cable

	Please choose the answer(1 or 2)(default=1):

	Will the hard disk be the master(single) or slave drive on this cable?

	 1. the master or single hard disk
	 2. the slave hard disk

	Please choose the answer(1 or 2)(default=2):

     Please answer the questions according to your setting.

  4. The other steps are very similar to the procedures about
     "Adding secondary hard disks" presented in the System Administor's
     Guide of SCO UNIX Operating System. Please refer to the System
     Administor's Guide for further reference.

  NOTICE:
  1.) When using the ptidiskadd, you MUST set the
      Promise controller to "cache disabled".
      With "cache disabled", the system will be able to identify the
      bad sector of the hard disk.
  2.) This utility will not work until you install the
      Promise driver and reboot with the new kernel.
  3.) With both primary and secondary Promise controller installed,
      you can add up to 8 hard disks.


  ******** Remove the Driver ********

  If you want to remove the driver and recover to the original hard disk
  device driver, please type the following command after the prompt #:

	 # removepkg

  Certain installed package name(s) will be displayed on the screen.
  Please choose "Promise Caching Controller Driver"
  The remove procedure will continue.

  If you are running the SCO UNIX, please type the following commands to
  shutdown and reboot your system:

	 # cd /
	 # shutdown -y -g0 -i6




+==========================================================================+

			TRADEMARK ACKNOWLEDGMENTS

+==========================================================================+

VESA and VL-BUS are registered trademark of the VIDEO ELECTRONICS STANDARDS
ASSOCIATION.

MS-DOS and Windows are registered trademarks of Microsoft Corporation.

PC, PC-AT, and OS/2 are registered trademarks of IBM Corporation.

UNIX is registered trademark of ATT Corp.