Using an SCO system and DOS with two hard disks
Your computer always boots the operating system in the active
partition on the first hard disk. SCO systems
must boot from the first hard disk.
There are several ways
to configure your system if you have two hard disks and want
to boot DOS.
Two ways are discussed here.
One configuration consists of designating the entire first disk as a UNIX partition. You then use a DOS boot floppy disk to start DOS and specify:
A> D:
to switch to the DOS area on the second hard disk, where
D:
is the designation for the second hard disk. This strategy works
for some versions of DOS. Early versions recognize only
the first hard disk on the system.
Another method is to maintain a small DOS partition on the first hard disk. The DOS partition is designated the active partition. In this configuration, the computer always boots DOS. This requires changing the active partition to boot the SCO system from the hard disk.
If you use the entire second disk for DOS, you need only create the additional special device files in /dev so that you can access the DOS partition. See ``Accessing DOS partitions on a second disk'' for more information.