Partition
Type Indentifiers .)This
is a quick reference list (some data may be misleading for your specific case).
Note: Sometimes there's only one way you can be sure of the exact purpose of an obscure or rarely used partition type: You must locate, examine and gather info about the utility that created the partition and/or ask the person who actually set up the disk what they're using that partition for!
(For a more detailed listing, see Andries Brouwer's Partition
Type Indentifiers .)
NOTE: All Partition Type values listed below are in Hexadecimal.
Remember: Partition types do *not* necessarily specify a specific file system; e.g., 07h is used by both OS/2's HPFS and Windows NT/2000/XP/2003/Vista/2008/7's NTFS (all versions).
00 : -- Should NOT be used in an actual table entry! It does not indicate an unknown type, but rather an empty entry; in which case, all other fields in that 16-byte entry should be zero-filled as well.
Although there are 253 possible partition type values (05h and 0Fh having been acknowledged as special use cases), you'll almost never see any but a handful of these being used today. This is primairly due to the popularity of the IBM/Microsoft operating systems (FAT16, FAT32 and NTFS), and the many flavors of Unix (such as BSD) and all the Linux distributions, which have mainly settled on using type 83h for all their file systems; apart from swap partitions, which are type 82h.
Partition Types
___________________
01 : -- 12-bit FAT (remember: this is on hard disks, not floppy disks, so you'll rarely see this today).
02 : -- XENIX root
03 : -- XENIX /usr (obsolete)
04 : -- 16-bit FAT, partition; of sizes less than 32 MB.
05
: -- Extended
Partition, (also see 0F below).
06 : -- 16-bit FAT, partition; greater than or equal to 32 MB.
07 : -- Installable
file systems: HPFS or NTFS. Also, QNX and Advanced Unix.
08 : -- AIX bootable partition,
AIX (Linux), SplitDrive, OS/2 (through Version 1.3),
Dell partition spanning multiple
drives (array), Commodore DOS.
09 : -- AIX data partition,
AIX bootable (Linux), Coherent file system, QNX.
0A : -- Coherent swap partition,
OPUS or OS/2 Boot Manager.
0B : -- 32-bit FAT
0C : -- 32-bit FAT,
using INT 13 Extensions.
----
0E : -- 16-bit FAT >=
32 MB, using INT 13 Extensions.
0F
: -- Extended
Partition, using INT 13 Extensions; often means it begins past 1024 cylinders.
10 : -- OPUS
11 : -- Hidden 12-bit FAT.
12 : -- Compaq diagnostics.
----
14 : -- Hidden 16-bit FAT,
partition <32 MB,
Novell DOS 7.0 (result of bug
in FDISK?),
AST DOS with logical sectored
FAT.
----
16 : -- Hidden 16-bit FAT,
partition >= 32 MB
17 : -- Hidden IFS (HPFS, NTFS).
18 : -- AST Windows swap file
19 : -- Willowtech Photon coS
----
1B : -- Hidden 32-bit FAT
1C : -- Hidden 32-bit FAT,
Ext INT 13
1E : -- Hidden 16-bit FAT >32
MB, Ext. INT 13 (PowerQuest specific)
----
20 : -- Willowsoft Overture
File System (OFS1)
21 : -- reserved (HP Volume
Expansion, SpeedStor variant)
Oxygen FSo2
22 : -- Oxygen Extended
23 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
24 : -- NEC MS-DOS 3.x
----
26 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
----
----
31 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
----
33 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
34 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
----
36 : -- reserved (HP Volume
Expansion, SpeedStor variant?)
----
38 : -- Theos
----
----
3C : -- PowerQuest Files Partition
Format
3D : -- Hidden NetWare
----
----
40 : -- VENIX 80286
41 : -- Personal RISC Boot,
PowerPC boot partition,
PTS-DOS 6.70 & BootWizard: Alternative
Linux, Minix and DR-DOS.
42 : -- Secure File
System,
Windows 2000/XP (NT 5): Dynamic
extended partition
PTS-DOS 6.70 & BootWizard: Alternative
Linux swap and DR-DOS.
43 : -- Alternative Linux native
file system (EXT2fs)
PTS-DOS 6.70 & BootWizard: DR-DOS
----
45 : -- Priam, EUMEL/Elan.
46 : -- EUMEL/Elan
47 : -- EUMEL/Elan
48 : -- EUMEL/Elan
----
4A : -- ALFS/THIN lightweight
filesystem for DOS
----
----
4D : -- QNX
4E : -- QNX
4F : -- QNX, Oberon boot/data
partition.
50 : -- Ontrack Disk Manager,
read-only partition, FAT partition (Logical sector size varies)
51 : -- Ontrack Disk Manager,
read/write partition, FAT partition (Logical sector size varies)
Novell ?
52 : -- CP/M, Microport System
V/386.
53 : -- Ontrack Disk Manager,
write-only
54 : -- Ontrack Disk Manager
6.0 (DDO)
55 : -- EZ-Drive 3.05
56 : -- Golden Bow VFeature
----
----
5C : -- Priam EDISK
----
----
61 : -- Storage Dimensions
SpeedStor
----
63 : -- GNU HURD, Mach, MtXinu
BSD 4.2 on Mach, Unix Sys V/386, 386/ix.
64 : -- Novell NetWare 286,
SpeedStore.
65 : -- Novell NetWare (3.11
and 4.1)
66 : -- Novell NetWare 386
67 : -- Novell NetWare
68 : -- Novell NetWare
69 : -- Novell NetWare 5+;
Novell Storage Services (NSS)
----
70 : -- DiskSecure Multi-Boot
----
75 : -- IBM PC/IX
----
----
80 : -- Minix v1.1 - 1.4a,
Old MINIX (Linux).
81 : -- Linux/Minix v1.4b+,
Mitac Advanced Disk Manager.
82 : -- Linux Swap
partition, Prime or Solaris (Unix).
83 : -- Linux native
file systems (ext2/3/4, JFS, Reiser, xiafs, and others).
84 : -- OS/2 hiding type 04h
partition
84 : -- APM hibernation, can
be used by Win98
----
86 : -- NT Stripe Set, Volume
Set?
87 : -- NT Stripe Set, Volume
Set?, HPFS FT mirrored partition.
----
----
93 : -- Amoeba file system,
Hidden Linux EXT2 partition (PowerQuest).
94 : -- Amoeba bad block table
----
----
99 : -- Mylex EISA SCSI
----
----
9F : -- BSDI
A0 : -- Phoenix NoteBios Power
Management "Save to Disk", IBM hibernation.
A1 : -- HP Volume Expansion
(SpeedStor variant)
----
A3 : -- HP Volume Expansion
(SpeedStor variant)
A4 : -- HP Volume Expansion
(SpeedStor variant)
A5 : -- FreeBSD/386
A6 : -- OpenBSD
A6 : -- HP Volume Expansion
(SpeedStor variant)
A7 : -- NextStep Partition
A9 : -- NetBSD
AA : -- Olivetti DOS with FAT12
----
----
B0 : -- Bootmanager BootStar
by Star-Tools GmbH
B1 : -- HP Volume Expansion
(SpeedStor variant)
B3 : -- HP Volume Expansion
(SpeedStor variant)
B4 : -- HP Volume Expansion
(SpeedStor variant)
B6 : -- HP Volume Expansion
(SpeedStor variant)
B7 : -- BSDI file system or
secondarily swap
B8 : -- BSDI swap partition
or secondarily file system
----
----
BB : -- PTS BootWizard
----
----
BE : -- Solaris boot partition
----
----
C0 : -- Novell DOS/OpenDOS/DR-OpenDOS/DR-DOS
secured partition,
CTOS (reported by a customer).
C1 : -- DR-DOS 6.0 LOGIN.EXE-secured
12-bit FAT partition
C2 : -- Reserved for DR-DOS
7+
C3 : -- Reserved for DR-DOS
7+
C4 : -- DR-DOS 6.0 LOGIN.EXE-secured
16-bit FAT partition
----
C6 : -- DR-DOS 6.0 LOGIN.EXE-secured
Huge partition, or:
Corrupted FAT16 volume/stripe
(V/S) set (Windows NT).
C7 : -- Syrinx, Cyrnix, HPFS
FT disabled mirrored partition, or:
Corrupted NTFS volume/stripe
set.
C8 : -- Reserved for DR-DOS
7+
C9 : -- Reserved for DR-DOS
7+
CA : -- Reserved for DR-DOS
7+
CB : -- Reserved for DR-DOS
secured FAT32
CC : -- Reserved for DR-DOS
secured FAT32X (LBA)
CD : -- Reserved for DR-DOS
7+
CE : -- Reserved for DR-DOS
secured FAT16X (LBA)
CF : -- Reserved for DR-DOS
secured Extended partition (LBA)
D0 : -- Multiuser DOS secured
(FAT12???)
D1 : -- Old Multiuser DOS secured
FAT12
----
----
D4 : -- Old Multiuser DOS secured
FAT16 (<= 32M)
D5 : -- Old Multiuser DOS secured
extended partition
D6 : -- Old Multiuser DOS secured
FAT16 (BIGDOS > 32 Mb)
----
D8 : -- CP/M 86
----
----
DB : -- CP/M, Concurrent CP/M,
Concurrent DOS, or
CTOS (Convergent Technologies
OS).
----
----
DE : -- Dell partition. Normally it contains a FAT16 file system of about 32 MB.
DF : -- BootIt EMBRM
----
E1 : -- SpeedStor 12-bit FAT
Extended partition, DOS access (Linux).
E2 : -- DOS read-only (Florian
Painke's XFDISK 1.0.4)
E3 : -- SpeedStor (Norton,
Linux says DOS R/O)
E4 : -- SpeedStor 16-bit FAT
Extended partition
E5 : -- Tandy DOS with logical
sectored FAT
E6 : -- Storage Dimensions
SpeedStor
----
----
EB : -- BeOS file system
----
ED : -- Reserved for Matthias
Paul's Spryt*x
----
----
F1 : -- SpeedStor Dimensions
(Norton,Landis)
F2 : -- DOS 3.3+ second partition,
Unisys DOS with logical sectored FAT.
F3 : -- Storage Dimensions
SpeedStor
F4 : -- SpeedStor Storage Dimensions
(Norton,Landis)
F5 : -- Prologue
F6 : -- Storage Dimensions
SpeedStor
----
----
FD : -- Reserved for FreeDOS
(http://www.freedos.org)
FE : -- LANstep, IBM PS/2 IML
(Initial Microcode Load) partition.
FE : -- Storage Dimensions
SpeedStor (> 1024 cylinder???)
FF : -- Xenix bad-block table
Created: June 6, 2007. (2007.06.06)
Updated: August 16, 2009. (2009.08.16)
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