SCO OpenServer Enterprise System Release 5.0.4, 5.0.5, 5.0.6, 5.0.7 
          SCO OpenServer Host System Release 5.0.4, 5.0.5, 5.0.6, 5.0.7 
          SCO OpenServer Desktop System Release 5.0.4, 5.0.5, 5.0.6, 5.0.7 

          There may be problems with the installation or upgrade of SCO
          OpenServer 5 that are not covered by the technical articles and
          require further investigation.  How can a debug logfile of the
          installation or upgrade be generated?

          First, if you want to save the debug log, you will require a
          floppy disk formatted with an EAFS filesystem on it.

          To do this on an existing OpenServer 5 system (with a 3.5 inch
          floppy disk), run the following:

              mkfs -f EAFS /dev/rfd0135ds18

          Once this is created, proceed with the installation or upgrade as
          usual, but at the Boot: prompt enter the following bootstring:

              defbootstr isl.debug

          If you are already specifying a bootstring, simply append the
          "isl.debug" keyword to the end of it.

          Once the installation files have completed loading from CD-ROM,
          proceed with the installation or upgrade as usual.  But, at any
          point you should be able to switch to a character screen by pressing
          <Ctrl><Alt><F3>, and be presented with a prompt of 
<installation>.

          If the installation or upgrade is failing with an error message,
          it is a good idea to switch to the character screen and view/save
          the install debug log at the point which the error is displayed.

          This is now running a shell within the ramdisk created for the
          Installation and Query Manager (IQM) where there are a limited
          number of shell commands available.

          The installation debug log is stored in /tmp/install.log and can be
          viewed with the cat command (pg and vi are not provided within the
          ramdisk).  To save this file to disk, mount the floppy that you
          previously created an EAFS filesystem on:

              mount /dev/install /mnt

          and then copy the file to it:

              cp /tmp/install.log /mnt

          Then unmount the disk:

              umount /mnt

          This disk can now be mounted on a live OpenServer 5 system and
          viewed with the standard commands (pg, more, view, and so on).