SCO OpenServer Enterprise System Release 5.0.5, 5.0.6, 5.0.7 
          SCO OpenServer Host System Release 5.0.5, 5.0.6, 5.0.7 
          SCO OpenServer Desktop System Release 5.0.5, 5.0.6, 5.0.7 
          SCO OpenServer Enterprise System Release 5.0.0, 5.0.2, 5.0.4 
          SCO OpenServer Host System Release 5.0.0, 5.0.2, 5.0.4 
          SCO OpenServer Desktop System Release 5.0.0, 5.0.2, 5.0.4 
          SCO OpenServer Internet FastStart Release 5.0.4 

          I have SCO OpenServer 5.0.x installed on a system.  I need to
          update or install a driver from a Boot Time Loadable Device (BTLD)
          diskette, how can I do this?

          You can use the btldinstall(ADM) command to install or update a
          driver(s) from a BTLD (Boot Time Loadable Device) diskette.

          You will need to have the BTLD image on a floppy diskette before you
          can use the btldinstall command.

          If you have the BTLD image on a UNIX hard drive, use the following
          command to transfer it to a floppy:

              # dd if=/<btld_image_name> of=/dev/fd0 bs=1440k <Enter>

          If you need to copy the btld file from a DOS/Windows system to
          a floppy, see Technical Article 105694 "Transferring supplements from a DOS system
          to a UNIX system and creating BTLDs for UNIX on a DOS system."

          Once you have the BTLD image on a floppy, insert the floppy into the
          floppy drive on the UNIX system.

          You will now need to mount the floppy drive by typing:

              # mount /dev/fd0 /<mount_point>    <Enter>

          For example, mount "/dev/fd0 /mnt".

          Once the floppy is mounted, enter the following to start the
          BTLD installation process:

              # btldinstall /<floppy_mount_point>    <Enter>

          For example, "btldinstall /mnt".

          The floppy will be read and a list of available drivers that
          can be installed will be displayed.

          -------------------------------------------------------------

              Example from the SLS OSS463B BTLD disk:

              The following packages are on this diskette:

              NAME            DESCRIPTION
              alad
              arad
              mdac
              slha
              wd

              Please enter the names of the packages you
              wish to install, or q to quit:
          ------------------------------------------------------------

          At this point, enter the name of the package (driver) you want
          to install and press <Enter>.

          If the driver exists (that is, you are upgrading a driver) you
          will see the following prompt:

              There is already a <driver_name> installed.
              Do you want to replace it with the version in <driver_name>?
              (y/n/q)

              Enter "y" to replace the driver.

          Once the driver has been installed you will see:

              A new kernel must be built, to reflect the changes in the link
              kit configuration.  Do you want to do this now? (y/n)

          Before the driver can be used, the kernel must be relinked and the
          system shut down and restarted.

          If you have no access to a floppy then you can get the information
          from a CD image, including the original OpenServer5 Installation CD:

          # mount /dev/cd0 /mnt      (To mount the OpenServer 5.0.x CDROM)

          # marry -a /mnt/images/boot/btld.img

          # mkdir /tmp/mnt
          # chmod 777 /tmp/mnt

          # mount -r /dev/marry/mnt/images/boot/btld.img /tmp/mnt

          # btldinstall /tmp/mnt
 
          and follow the installation instructions above.
    
          # umount /tmp/mnt
          # umount /mnt

          man pages btldinstall(ADM), mount(ADM)

          Technical Article 105694 "Transferring supplements from a DOS system to a UNIX
          system and creating BTLDs for UNIX on a DOS system."