(begin quote)
   The partition table in the MBR (and IDE drives, I think) can contain
   up to four entries for "primary" partitions.  If there are logical
   partitions, one of these entries is a "container" partition for the
   logical partitions.  There is not a problem accessing more than one
   primary partition under DOS.  I have a 386 with MS-DOS, PTS-DOS and
   FreeDOS on separate bootable partitions.  Each OS can readily access
   all three partitions.
   Ken Martwick
(end of quote)

I didn't know DOS (and OS/2?) could recognize more than one primary partition on
a hard drive, though I wondered how DOS or OS/2 would decide which primary
partition to recognize when booting from a different drive.  OS/2 Warp 3
documentation says multiple primary partitions on a hard disk are all drive C
(on a one-hard-disk system), with only one being accessible at a time.

What are your drive letters, and do the at least two non-C DOSes like to boot
from non-C drive?

Which DOS do you like best, and how if FreeDOS doing?  Is FreeDOS up to serious
business?  Ever run Arachne under FreeDOS?

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