Hard Disk Partition Types

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Article #8749

#8749

From: Andrew Rossmann
Date: Tue, 16 Jan 1990 23:00

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  I have written a program that reads the partition table, and displays what
type of partition(s) you have. So far, I've been able to identify the
following (all values in hex):
00=none
01=12-bit DOS
02=Xenix
03=Xenix (any different from 02??)
04=16-bit DOS, 32M limit
05=16-bit DOS, extended partition (<=32M)
06=16-bit DOS, >32M
08=Split (??)
51=Disk Manager
56=GB (??)
61=Speedstor (?)
64=Novell
75=PC/IX
DB=CP/M
FF=BBT (?)

  The ones marked with (?) I'm not so sure of, or what they actually are.
  I would be interested in knowing of any other partition values.
  Does anyone have information on how Disk Manager (and maybe others)
allows up to 16 partitions? How do I read the logical disks inside a DOS
extended partition? What is the exact format of Partition entries?
  You can email me at: andyross@ddsw1.MCS.COM, <someplace>!ddsw1!andyross,
or andyross@igloo.SCUM.COM.

  Andrew Rossmann
  andyross@ddsw1.MCS.COM

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From: andyross@ddsw1.MCS.COM (Andrew Rossmann)
Newsgroups: comp.sys.ibm.pc
Subject: Hard Disk Partition Types
Message-ID: <25b3a4dd:8169comp.ibmpc@ddsw1.MCS.COM>
Date: 16 Jan 90 23:00:10 GMT
Lines: 29