How can I install SCO OpenServer 5 on a VMware virtual machine using SCSI
hard disk emulation, or on a multiprocessor system using a BusLogic SCSI
host adapter?

KEYWORDS: openserver v5 osr5 blc adapter drivers bus pci advanced hardware
supplement ftp downloadable blc scsi vmware virtual machine buslogic
multiprocessor smp ENGREF fz527739

RELEASE:  SCO OpenServer Enterprise System Release 5.0.6a, 5.0.7
          SCO OpenServer Desktop System Release 5.0.6a, 5.0.7
          SCO OpenServer Host System Release 5.0.6a, 5.0.7

HARDWARE: BusLogic BT-440C SCSI host adapter
          BusLogic BT-445S SCSI host adapter
          BusLogic BT-540CF SCSI host adapter
          BusLogic BT-542B SCSI host adapter
          BusLogic BT-542D SCSI host adapter
          BusLogic BT-545S SCSI host adapter
          BusLogic BT-646D SCSI host adapter
          BusLogic BT-646S SCSI host adapter
          BusLogic BT-742A SCSI host adapter
          BusLogic BT-747D SCSI host adapter
          BusLogic BT-747S SCSI host adapter
          BusLogic BT-757C SCSI host adapter
          BusLogic BT-757CD SCSI host adapter
          BusLogic BT-930 FlashPoint LT SCSI host adapter
          BusLogic BT-948 SCSI host adapter
          BusLogic BT-958 SCSI host adapter
          VMware virtual machines

PROBLEM:  SCO OpenServer Release 5 includes a version of the "blc" 
          host bus adapter driver which incorrectly enumerates PCI 
          devices when running in a multiprocessor (SMP) enviroment 
          or when running under VMware (which emulates a BusLogic 
          BT-958 SCSI host adapter).  This results in a a "no
          root disk controller found" message when the system 
          is first booted after installation.

SOLUTION: An updated "blc" driver, version 3.05.1, can be downloaded 
          from the following URL:

          ftp://ftp.sco.com/pub/openserver5/507/drivers/blc_3.05.1

          To install this driver, follow these instructions:

          1. Aquire the driver from the ftp address listed above.

            - Download the btld image to a directory/file on your
              machine. For example, /tmp/blc_3.05.1.btld.img

            - Verify the downloaded image using sum.

                 sum -r /tmp/blc_3.05.1.btld.img

              This should return:

                     41286 2880 /tmp/blc_3.05.1.btld.img

            - Format a floppy disk using the format command.

            - Copy the downloaded image to the floppy:

                 dd if=/tmp/blc_3.05.1.btld.img of=/dev/fd0 bs=18k

            - Verify the copied floppy image using sum:

                     sum -r /dev/fd0

              This should return:

                 41286  2880 /dev/fd0

           2a. Fresh Installation on Primary Drive

             - Insert a boot disk or Installation CD and boot the
               system.

             - At the boot prompt, type:

                     defbootstr link=blc

             - Press <Return> and continue with normal installation.

           2b. Installation on a Secondary Drive

             - Boot and Login normally.

             - Mount the floppy image:

                     mount -r /dev/fd0 /mnt

             - Use the BTLD Install script to install the driver:

                     /etc/btldinstall /mnt

               Once the kernel has been relinked, reboot the host and
               verify that is initializing the card. The boot time banner
               should look something like:

               %adapter 0x1060-0x1063 11 - type=blc ha=0 id=7 fts=stn

               When the adapter is installed and the boot-time banner is
               properly displayed, you may use the appropriate mkdev
               script to add a disk, tape, or cdrom to the SCSI bus.

NOTE:     This driver is included in SCO OpenServer 5.0.7 Maintenance 
          Pack 4 but only as part of the link kit package. It is not 
          provided in BTLD format as part of MP4.