Partition type

{{Short description|Table inside a master boot record}} {{About|MBR partition types in IBM PC compatible systems|GPT partition types|GUID Partition Table#Partition type GUIDs|Amiga RDB partition types|Rigid Disk Block}} {{Use dmy dates|date=April 2019|cs1-dates=y}}

The '''partition type''' (or '''partition ID''') in a partition's entry in the partition table inside a master boot record (MBR) is a byte value intended to specify the file system the partition contains or to flag special access methods used to access these partitions (e.g. special CHS mappings, LBA access, logical mapped geometries, special driver access, hidden partitions, secured or encrypted file systems, etc.).

== Overview ==

Lists of assigned partition types to be used in the partition table in the MBR were originally maintained by IBM and Microsoft internally. When the market of PC operating systems and disk tools grew and liberated, other vendors had a need to assign special partition types to their products as well. As Microsoft neither documented all partition types already assigned by them nor wanted to maintain foreign assignments, third parties started to simply assign partition types on their own behalf in a mostly uncoordinated trial-and-error manner. This led to various conflicting assignments sometimes causing severe compatibility problems between certain products.<ref name="Microsoft_2011_GPT" />

Several industry experts including Hale Landis, Ralf D. Brown, Matthias R. Paul, and Andries E. Brouwer in the 1990s started to research partition types and published (and later synchronized) partition type lists in order to help document the industry de facto standard and thereby reduce the risk of further conflicts. Some of them also actively helped to maintain software dealing with partitions to work with the updated lists, indicated conflicts, devised additional detection methods and work-arounds for vendors, or engaged in coordinating new non-conflictive partition type assignments as well.

It is up to an operating system's boot loader or kernel how to interpret the value. So the table specifies which operating systems or disk-related products introduced an ID and what file system or special partition type they mapped it to. Partitions with partition types unknown to the software should be treated as reserved but occupied disk storage space which should not be dealt with by the software, save for partition managers.

== Local or Experimental Use ==

While the list is not officially maintained,<ref name="Microsoft_2011_GPT" /> ''new'' assignments should be coordinated.

In particular temporary partition type assignments for local or experimental projects can utilize type <code>7Fh</code> in order to avoid conflicts with already assigned types. This type was specially reserved for individual use as part of the ''Alternative OS Development Partition Standard'' (AODPS) initiative since 2002.<ref name=":1">{{Cite web|url=https://groups.google.com/d/msg/alt.os.development/koTbjqUYCjQ/U-ZJpOAgruAJ|title=Partition Type ID (The RESULTs)|last=Martineau|first=Stéphane|date=2002-08-11|website=alt.os.development|access-date=2017-08-20}}</ref>

== List of partition IDs ==

This is a list of known master boot record partition types on IBM PC compatible computers:

{| class="wikitable sortable" border="1" style="float:center;" ! Partition ID !! Occurrence !! Access !! Bootable !! Type !! Origin !! Supported by !! Description |- | <code>00h</code> || MBR, EBR || {{N/a}} || {{No}} || Free || IBM || All || {{anchor|PID_00h}}Empty partition entry |-  | <code>01h</code> || MBR, EBR || CHS, LBA || x86, 68000, 8080/Z80 || File system || IBM || DOS 2.0+ || {{anchor|PID_01h}}FAT12 as primary partition in first physical 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr> of disk or as logical drive anywhere on disk (else use <code>06h</code> instead)<ref name="Chappell_1994_DOS-Internals" /><ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>02h</code> || MBR || CHS || x86, 68000, Z8000, PDP-11 || File system || Microsoft, SCO || XENIX || {{anchor|PID_02h}}XENIX root (see <code>03h</code> and <code>FFh</code>)<ref name="Chappell_1994_DOS-Internals" /> |- | <code>03h</code> || MBR || CHS || {{No}} || File system || Microsoft, SCO || XENIX || {{anchor|PID_03h}}XENIX usr (see <code>02h</code> and <code>FFh</code>)<ref name="Chappell_1994_DOS-Internals" /> |- | <code>04h</code> || MBR, EBR || CHS, LBA || x86, 68000, 8080/Z80 || File system || Microsoft || DOS 3.0+ || {{anchor|PID_04h}}FAT16 with less than 65,536 sectors (32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr>). As primary partition it must reside in first physical 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr> of disk, or as logical drive anywhere on disk (else use <code>06h</code> instead).<ref name="Chappell_1994_DOS-Internals" /><ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>05h</code> || MBR, EBR || CHS, (LBA) || {{No}}, AAP || Container || IBM || Some versions of DOS 3.2, DOS 3.3+ || {{anchor|PID_05h}}Extended partition with CHS addressing. It must reside within the first physical 8 <abbr title="GigaByte (1024 MB or 1,048,576 KB or 1,073,741,824 bytes)">GB</abbr> of disk, else use <code>0Fh</code> instead (see <code>0Fh</code>, <code>85h</code>, <code>C5h</code>, <code>D5h</code>)<ref name="Chappell_1994_DOS-Internals" /><ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>06h</code> || MBR, EBR || CHS, LBA || x86 || File system || Compaq || DOS 3.31+ || {{anchor|PID_06h}}FAT16B with 65,536 or more sectors. It must reside within the first 8 <abbr title="GigaByte (1024 MB or 1,048,576 KB or 1,073,741,824 bytes)">GB</abbr> of disk unless used for logical drives in an <code>0Fh</code> extended partition (else use <code>0Eh</code> instead). Also used for FAT12 and FAT16 volumes in primary partitions if they are not residing in first physical 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr> of disk.<ref group="nb" name="NB_PID_06h" /><ref name="Chappell_1994_DOS-Internals" /><ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | rowspan="5" | <code>07h</code> || MBR, EBR || CHS, LBA || x86 || File system || Microsoft, IBM || OS/2 1.2+ || {{anchor|PID_07h}}IFS |- | MBR, EBR || CHS, LBA || 286 || File system || IBM || OS/2 1.2+, Windows NT || HPFS<ref name="Chappell_1994_DOS-Internals" /> |- | MBR, EBR || CHS, LBA || 386 || File system || Microsoft || Windows NT || NTFS<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | MBR, EBR || CHS, LBA || {{Yes}} || File system || Microsoft || Windows Embedded CE || exFAT |- | || || || File system | Quantum Software Systems || QNX 2 || QNX "qnx" (7) (pre-1988 only)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | rowspan="5" | <code>08h</code> || MBR || CHS || x86 || File system || Commodore || Commodore MS-DOS 3.x || {{anchor|PID_08h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> |- | || CHS || x86 || File system || IBM || OS/2 1.0-1.3 || OS/2 (FAT?) |- | || || || File system | IBM || AIX || AIX boot/split |- | || || || File system | Quantum Software Systems || QNX 1.x/2.x || QNX "qny" (8)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | || || || Container | Dell || || Partition spanning multiple drives |- | rowspan="4" | <code>09h</code> || || || || File system | IBM || AIX || {{anchor|PID_09h}}AIX data/boot |- | || || || File system | Quantum Software Systems || QNX 1.x/2.x || QNX "qnz" (9)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | MBR || CHS || 286 || File system || Mark Williams Company || Coherent || Coherent file system |- | MBR || || || File system || Microware || OS-9 || OS-9 RBF |- | rowspan="2" | <code>0Ah</code> || || || || Service | PowerQuest, IBM || OS/2 || {{anchor|PID_0Ah}}OS/2 Boot Manager<ref group="nb" name="NB_HiddenBootManager" /> |- | || || || Swap | Mark Williams Company || Coherent || Coherent swap partition |- | <code>0Bh</code> || MBR, EBR || CHS, LBA || x86 || File system || Microsoft || DOS 7.1+ || {{anchor|PID_0Bh}}FAT32 with CHS addressing<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>0Ch</code> || MBR, EBR || LBA || x86 || File system || Microsoft || DOS 7.1+ || {{anchor|PID_0Ch}}FAT32 with LBA<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>0Eh</code> || MBR, EBR || LBA || x86 || File system || Microsoft || DOS 7.0+ || {{anchor|PID_0Eh}}FAT16B with LBA<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>0Fh</code> || MBR, EBR || LBA || {{No}}, AAP || Container || Microsoft || DOS 7.0+ || {{anchor|PID_0Fh}}Extended partition with LBA (see <code>05h</code> and <code>CFh</code>)<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | rowspan=2 | <code>11h</code> || MBR || CHS || x86 || File system || Leading Edge || Leading Edge MS-DOS 3.x || {{anchor|PID_11h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> |- | || || || Hidden FS || IBM || OS/2 Boot Manager || Hidden FAT12 (corresponds with <code>01h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | rowspan="6" | <code>12h</code> || MBR || CHS, LBA || x86 || Service FS || Compaq || || {{anchor|PID_12h}}Configuration partition (bootable FAT with MS-DOS<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /><ref name="obscure" />); Recovery partition (bootable FAT32 with Windows setup<ref>{{Cite news|url=http://forum.notebookreview.com/threads/compaq-setup-partition.318354/|title=Compaq Setup partition|work=NotebookReview|access-date=2018-02-14|language=en-US}}</ref>) |- | MBR | || x86 | Service || ''Gang of Nine'' || EISA machines | EISA configuration utility for the system<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | || || || Hibernation || Compaq || Compaq Contura || Hibernation partition<ref name="obscure" /> |- | MBR || || x86 || Service FS || NCR || || Diagnostics and firmware partition (bootable FAT)<ref name="obscure" /> |- | MBR || || x86 || Service FS || Intel || || Service partition (bootable FAT)<ref name="obscure" /> (see <code>98h</code>) |- | || || || Service FS || IBM || || Rescue and Recovery partition<ref name="obscure" /> |- | rowspan="3" | <code>14h</code> || || || || File system || AST || AST MS-DOS 3.x || {{anchor|PID_14h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> (see AST MBR) |- | || || x86, 68000, 8080/Z80 || Hidden FS || IBM || OS/2 Boot Manager || Hidden FAT16 (corresponds with <code>04h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | || LBA || x86 | File system || Lasse Krogh Thygesen | Maverick OS || Omega file system<ref name=":0">{{Cite web|url=http://www.maverick-os.dk/FileSystemFormats/FileSystemIdentifiers.html|title=Maverick - The Operating System - File System Identifiers|last=Thygesen|first=Lasse Krogh|website=www.maverick-os.dk|language=en|access-date=2017-08-19}}</ref> |- | rowspan="2" | <code>15h</code> || || || {{No}}, AAP || Hidden container || IBM || OS/2 Boot Manager || {{anchor|PID_15h}}Hidden extended partition with CHS addressing (corresponds with <code>05h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | || LBA || No | Swap | Lasse Krogh Thygesen | Maverick OS || Swap<ref name=":0" /> |- | <code>16h</code> || || || x86, 68000, 8080/Z80 || Hidden FS || IBM || OS/2 Boot Manager || {{anchor|PID_16h}}Hidden FAT16B (corresponds with <code>06h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | rowspan="4" | <code>17h</code> || rowspan="4" | || rowspan="4" | || rowspan="4" | || rowspan="4" | Hidden FS || rowspan="4" | IBM || rowspan="4" | OS/2 Boot Manager || {{anchor|PID_17h}}Hidden IFS (corresponds with <code>07h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | Hidden HPFS (corresponds with <code>07h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | Hidden NTFS (corresponds with <code>07h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | Hidden exFAT (corresponds with <code>07h</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | <code>18h</code> || || || {{No}} || Hibernation || AST || AST Windows || {{anchor|PID_18h}}AST Zero Volt Suspend or SmartSleep partition |- | <code>19h</code> || || || || || Willow Schlanger || Willowtech Photon coS || {{anchor|PID_19h}}Willowtech Photon coS (see <code>20h</code>) |- | <code>1Bh</code> || || || || Hidden FS || IBM || OS/2 Boot Manager || {{anchor|PID_1Bh}}Hidden FAT32 (corresponds with <code>0Bh</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | rowspan="2" | <code>1Ch</code> || || || || Hidden FS || IBM || OS/2 Boot Manager || {{anchor|PID_1Ch}}Hidden FAT32 with LBA (corresponds with <code>0Ch</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | || || || Service FS || ASUS || ASUS eRecovery || ASUS recovery partition (Hidden FAT32 with LBA, see <code>0Ch</code>)<ref>{{Cite web |url=https://rog.asus.com/forum/showthread.php?1822-Re-Creating-Recovery-Partition |title=RE Creating Recovery Partition |date=2011-07-03 |website=ASUS Republic of Gamers |access-date=2017-04-27 |archive-date=2022-04-11 |archive-url=https://web.archive.org/web/20220411054548/https://rog.asus.com/forum/showthread.php?1822-Re-Creating-Recovery-Partition |url-status=dead }}</ref> |- | <code>1Eh</code> || || || || Hidden FS || IBM || OS/2 Boot Manager || {{anchor|PID_1Eh}}Hidden FAT16 with LBA (corresponds with <code>0Eh</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | <code>1Fh</code> || MBR, EBR || LBA || || Hidden container || IBM || OS/2 Boot Manager || {{anchor|PID_1Fh}}Hidden extended partition with LBA addressing (corresponds with <code>0Fh</code>)<ref group="nb" name="NB_HiddenBootManager" /> |- | rowspan="2" | <code>20h</code> || || || ? | File system | Microsoft || Windows Mobile || {{anchor|PID_20h}}Windows Mobile update XIP |- | || || || File system | Willow Schlanger || || Willowsoft Overture File System (OFS1) (see <code>19h</code>) |- | rowspan="2" | <code>21h</code> || MBR || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_21h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | || || || File system || Dave Poirier || Oxygen || FSo2 (Oxygen File System) (see <code>22h</code>) |- | <code>22h</code> || || || || Container || Dave Poirier || Oxygen || {{anchor|PID_22h}}Oxygen Extended Partition Table (see <code>21h</code>) |- | <code>23h</code> | || || {{Yes}} || File system | Microsoft || Windows Mobile || Windows Mobile boot XIP |- | <code>24h</code> || MBR || CHS || x86 || File system || NEC || NEC MS-DOS 3.30 || {{anchor|PID_24h}}Logical sectored FAT12 or FAT16<ref name="Novell_1993_FYI.M.1101" /><ref group="nb" name="NB_LFAT" /> (see NEC MBR) |- | rowspan="3" | <code>27h</code> || || || || Service FS || Microsoft || Windows || {{anchor|PID_27h}}Windows Recovery Environment (RE) partition (hidden NTFS partition type <code>07h</code>)<ref name="Microsoft_2009_Recovery" /> |- | MBR || LBA || {{Yes}} || Service FS || Acer || D2D eRecovery || Rescue partition (Hidden NTFS labeled "PQService", corresponds to <code>07h</code>) |- | || || {{Yes}} || Service || MikroTik || Linux (RouterBOARD 500) || RooterBOOT kernel partition (contains a raw ELF Linux kernel, no file system) |- | rowspan="2" | <code>2Ah</code> || || || || File system || Kurt Skauen || AtheOS || {{anchor|PID_2Ah}}AtheOS file system (AthFS, AFS) (an extension of BFS, see <code>2Bh</code> and <code>EBh</code>) |- | MBR, EBR || LBA || x86 || File system || || || Reserved (see <code>CAh</code>) |- | <code>2Bh</code> || || || || File system | Kristian van der Vliet || SyllableOS || {{anchor|PID_2Bh}}SyllableSecure (SylStor), a variant of AthFS (an extension of BFS, see <code>2Ah</code> and <code>EBh</code>) |- | <code>30h</code> || MBR || CHS || x86 || File system || Digital Research || Personal CP/M-86 || Found in some OEM Siemens systems instead of <code>DBh</code>.<ref name="Elliott_1998_CPM" /> Filesystem parameters are in the following sector (LBA 1), not the partition itself. |- | <code>31h</code> || || || || || Microsoft, IBM || || {{anchor|PID_31h}}Reserved |- | <code>32h</code> || MBR || Yes || Container || || Alien Internet Services || nOS || {{anchor|PID_32h}}Used as a container for nOS partitions (kernel and driver caching, user file storage, swap, etc.)<ref>Andries Brouwer's partition type list: [https://aeb.win.tue.nl/partitions/partition_types-1.html](https://aeb.win.tue.nl/partitions/partition_types-1.html)</ref><ref>NetBSD source code: [https://github.com/NetBSD/src/blob/master/sys/sys/bootblock.h](https://github.com/NetBSD/src/blob/master/sys/sys/bootblock.h)</ref><ref>File command magic file: [https://github.com/file/file/blob/master/magic/Magdir/filesystems](https://github.com/file/file/blob/master/magic/Magdir/filesystems)</ref> |- | <code>33h</code> || || || || || Microsoft, IBM || || {{anchor|PID_33h}}Reserved |- | <code>34h</code> || || || || || Microsoft, IBM || || {{anchor|PID_34h}}Reserved |- | <code>35h</code> || MBR, EBR || CHS, LBA || {{No}} || File system || IBM || OS/2 Warp Server / eComStation || {{anchor|PID_35h}}JFS (OS/2 implementation of AIX Journaling File system) |- | <code>36h</code> || || || || || Microsoft, IBM || || {{anchor|PID_36h}}Reserved |- | <code>38h</code> || || || || File system | Timothy Williams || THEOS || {{anchor|PID_38h}}THEOS version 3.2, 2 GB partition |- | rowspan="2" | <code>39h</code> || || || || Container || Bell Labs || Plan 9 || {{anchor|PID_39h}}Plan 9 edition 3 partition (sub-partitions described in second sector of partition) |- | || || || File system | Timothy Williams || THEOS || THEOS version 4 spanned partition |- | <code>3Ah</code> || || || || File system | Timothy Williams || THEOS || {{anchor|PID_3Ah}}THEOS version 4, 4 GB partition |- | <code>3Bh</code> || || || || Container | Timothy Williams || THEOS || {{anchor|PID_3Bh}}THEOS version 4 extended partition |- | <code>3Ch</code> || || || || Service | PowerQuest || PartitionMagic || {{anchor|PID_3Ch}}<abbr title="PowerQuest Repair Partition">PqRP</abbr> (PartitionMagic or DriveImage in progress)<ref name="PowerQuest_2003_PartitionMagic" /> |- | <code>3Dh</code> || || || || Hidden FS || PowerQuest || PartitionMagic || {{anchor|PID_3Dh}}Hidden NetWare |- | rowspan="2" | <code>40h</code> || || || || || PICK Systems || PICK || {{anchor|PID_40h}}PICK R83 |- | || || || || VenturCom || Venix || Venix 80286 |- | rowspan="3" | <code>41h</code> || || || {{Yes}} || || || Personal RISC || {{anchor|PID_41h}}Personal RISC Boot |- | || || || || Linux || Linux || Old Linux/Minix (disk shared with DR DOS 6.0) (corresponds with <code>81h</code>) |- | || || PowerPC || || PowerPC || PowerPC || PPC PReP (Power PC Reference Platform) Boot |- | rowspan="3" | <code>42h</code> || || || || Secured FS || Peter Gutmann || SFS || {{anchor|PID_42h}}Secure File system (SFS) |- | || || {{No}} || || Linux || Linux || Old Linux swap (disk shared with DR DOS 6.0) (corresponds with <code>82h</code>) |- | || || || Container || Microsoft || Windows 2000, XP, etc. || Dynamic extended partition marker<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>43h</code> || || || {{Yes}} || File system || Linux || Linux || {{anchor|PID_43h}}Old Linux native (disk shared with DR DOS 6.0) (corresponds with <code>83h</code>) |- | <code>44h</code> || || || || || Wildfile || GoBack || {{anchor|PID_44h}}Norton GoBack, WildFile GoBack, Adaptec GoBack, Roxio GoBack |- | rowspan="3" | <code>45h</code> || || CHS || || || Priam || || {{anchor|PID_45h}}Priam (see also <code>5Ch</code>) |- | MBR || CHS || {{Yes}} || || || Boot-US || Boot-US boot manager (1 cylinder) |- | || || || || Jochen Liedtke, GMD || EUMEL/ELAN || EUMEL/ELAN (L2) |- | <code>46h</code> || || || || || Jochen Liedtke, GMD || EUMEL/ELAN || {{anchor|PID_46h}}EUMEL/ELAN (L2) |- | <code>47h</code> || || || || || Jochen Liedtke, GMD || EUMEL/ELAN || {{anchor|PID_47h}}EUMEL/ELAN (L2) |- | <code>48h</code> || || || || || Jochen Liedtke, GMD || EUMEL/ELAN || {{anchor|PID_48h}}EUMEL/ELAN (L2), ERGOS L3 |- | rowspan="2" | <code>4Ah</code> || MBR || || {{Yes}} || || Nick Roberts || AdaOS || {{anchor|PID_4Ah}}Aquila (see <code>7Fh</code>) |- | MBR, EBR || CHS, LBA || {{No}} || File system || Mark Aitchison || ALFS/THIN || ALFS/THIN advanced lightweight file system for DOS |- | <code>4Ch</code> || || || || || ETH Zürich || ETH Oberon || {{anchor|PID_4Ch}}Aos (A2) file system (76) |- | <code>4Dh</code> || || || || || Quantum Software Systems || QNX 4.x, Neutrino || {{anchor|PID_4Dh}}Primary QNX POSIX volume on disk (77)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | <code>4Eh</code> || || || || || Quantum Software Systems || QNX 4.x, Neutrino || {{anchor|PID_4Eh}}Secondary QNX POSIX volume on disk (78)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | rowspan="2" | <code>4Fh</code> || || || || || Quantum Software Systems || QNX 4.x, Neutrino || {{anchor|PID_4Fh}}Tertiary QNX POSIX volume on disk (79)<ref name="QNX4" /><ref group="nb" name="QNX" /> |- | || || {{Yes}} || || ETH Zürich || ETH Oberon || Boot / native file system (79) |- | rowspan="4" | <code>50h</code> || || || || || ETH Zürich || ETH Oberon || {{anchor|PID_50h}}Alternative native file system (80) |- | || || {{No}} || || Ontrack || Disk Manager 4 || Read-only partition (old) |- | || || || || || LynxOS || Lynx RTOS |- | || || || || || Novell || |- | rowspan="2" | <code>51h</code> || || || || || Novell || || {{anchor|PID_51h}} |- | || || {{No}} || || Ontrack || Disk Manager 4-6 || Read-write partition (Aux 1) |- | rowspan="2" | <code>52h</code> || MBR || CHS ||  || File system || Digital Research || CP/M-80 || {{anchor|PID_52h}}CP/M-80 |- | || || || || Microport || System V/AT, V/386 || |- | <code>53h</code> || || || || || Ontrack || Disk Manager 6 || {{anchor|PID_53h}}Auxiliary 3 (WO) |- | <code>54h</code> || || || || || Ontrack || Disk Manager 6 || {{anchor|PID_54h}}Dynamic Drive Overlay (DDO) |- | <code>55h</code> || || || || || MicroHouse / StorageSoft || EZ-Drive || {{anchor|PID_55h}}EZ-Drive, Maxtor, MaxBlast, or DriveGuide INT 13h redirector volume |- | rowspan="3" | <code>56h</code> || || || || || AT&T || AT&T MS-DOS 3.x || {{anchor|PID_56h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> |- | || || || || MicroHouse / StorageSoft || EZ-Drive || Disk Manager partition converted to EZ-BIOS |- | || || || || Golden Bow || VFeature || VFeature partitioned volume |- | rowspan="2" | <code>57h</code> || || || || || MicroHouse / StorageSoft || DrivePro || {{anchor|PID_57h}} |- | || || || || Novell || || VNDI partition |- | <code>59h</code> || MBR, EBR || CHS, LBA || {{Yes}} || File system || Yocto || yocOS || yocFS |- | <code>5Ch</code> || || CHS || || Container || Priam || EDISK || {{anchor|PID_5Ch}}Priam EDisk Partitioned Volume (see also <code>45h</code>) |- | <code>61h</code> || MBR |CHS | || Hidden FS | Storage Dimensions || SpeedStor || {{anchor|PID_61h}}Hidden FAT12 (corresponds to <code>E1h</code>)<ref name=":0" group="nb">[http://minuszerodegrees.net/software/speedstor.htm SpeedStor is an extended storage support driver for DOS for IBM PC/XT (v. 6.03) and IBM PC/AT (v. 6.5)]. Its custom partition types are <code>E1h</code>, <code>E4h</code> and <code>F4h</code> which can be marked read-only (becoming <code>E3h</code>, <code>E6h</code>, <code>F6h</code>), hidden (<code>61h</code>, <code>64h</code>, <code>74h</code>) or hidden read-only (<code>63h</code>, <code>66h</code>, <code>76h</code>).</ref> |- | rowspan="3" | <code>63h</code> || || CHS || || File system || AT&T | SCO Unix, ISC, UnixWare, AT&T System V/386, ix, MtXinu BSD 4.3 on Mach || {{anchor|PID_63h}} |- | || CHS || {{Yes}} || File system || Mach and BSD<ref name="hurd_ufs">{{Cite web|url=https://git.savannah.gnu.org/cgit/hurd/hurd.git/commit/?id=84cf9c0f312637b670cc87224ff7e7c4da659e36|title=GNU Hurd: Remove UFS support}}</ref><ref name="hurd_ffs">{{Cite web|url=https://git.savannah.gnu.org/cgit/hurd/hurd.git/tree/NEWS?id=94cef36797600d11a50d09828fa80df8a73dfd1c|title=GNU Hurd: NEWS 1995}}</ref> || GNU/Hurd || {{anchor|PID_63h}}Old GNU/Hurd with UFS<ref name="hurd_ufs"/> support (corresponds with <code>83h</code>) |- |MBR |CHS | |Hidden FS |Storage Dimensions |SpeedStor |Hidden read-only FAT12 (corresponds to <code>E3h</code>)<ref name=":0" group="nb" /> |- | rowspan="3" |<code>64h</code>|| || || || ? | Storage Dimensions || SpeedStor ||{{anchor|PID_64h}}Hidden FAT16 (corresponds to <code>E4h</code>)<ref name=":0" group="nb" /> |- | || || || File system || Novell || NetWare || NetWare File System 286/2<ref name="Chappell_1994_DOS-Internals" /> |- | || || || Secured FS | Solomon || || PC-ARMOUR |- | <code>65h</code> || || || || File system || Novell || NetWare || {{anchor|PID_65h}}NetWare File System 386 |- | rowspan="2" | <code>66h</code> || || || || ? || Novell || NetWare || {{anchor|PID_66h}}Storage Management Services (SMS) |- |MBR | CHS || ||Hidden FS | Storage Dimensions || SpeedStor || Hidden read-only FAT16 (corresponds to <code>E6h</code>)<ref name=":0" group="nb" /> |- | <code>67h</code> || || || || ? | Novell || NetWare || {{anchor|PID_67h}}Wolf Mountain cluster |- | <code>68h</code> || || || || ? | Novell || NetWare || {{anchor|PID_68h}} |- | rowspan="2" | <code>69h</code> || || || || ? | Novell || NetWare 5 || {{anchor|PID_69h}} |- | || || || ? | Novell || NetWare || Novell Storage Services (NSS) |- | <code>6Ch</code> || MBR || CHS, LBA || x86 || Container || DragonFly BSD || BSD || {{anchor|PID_6Ch}}BSD slice (DragonFly BSD)<ref>DragonFly BSD commit 794d80a: [https://github.com/DragonFlyBSD/DragonFlyBSD/commit/794d80aa519b394b3174f20776a6a667452422db Change legacy MBR partition type from 0xA5 to 0x6C]</ref> |- | <code>70h</code> || || || || Service | || DiskSecure || {{anchor|PID_70h}}DiskSecure multiboot |- | <code>71h</code> || || || || || Microsoft, IBM || || {{anchor|PID_71h}}Reserved |- | rowspan="2" | <code>72h</code> || MBR, EBR || CHS || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_72h}}APTI alternative FAT12 (CHS, SFN) (corresponds with <code>01h</code>) |- | || || || File system | Nordier || Unix V7/x86 || V7/x86 |- | <code>73h</code> || || || || || Microsoft, IBM || || {{anchor|PID_73h}}Reserved |- | <code>74h</code> ||MBR |CHS | ||Hidden FS | Storage Dimensions || SpeedStor || {{anchor|PID_74h}}Hidden FAT16B (corresponds to <code>F4h</code>)<ref name=":0" group="nb" /> |- | <code>75h</code> || || || || File system | IBM || PC/IX || {{anchor|PID_75h}}<ref name="Chappell_1994_DOS-Internals" /> |- | <code>76h</code> || || || || || Storage Dimensions ||SpeedStor |{{anchor|PID_76h}}Hidden read-only FAT16B (corresponds to <code>F6h</code>)<ref name=":0" group="nb" /> |- | <code>77h</code> || || || || File system || Novell || || {{anchor|PID_77h}}VNDI, M2FS, M2CS |- | <code>78h</code> || || || {{Yes}} || File system || Geurt Vos || || {{anchor|PID_78h}}XOSL bootloader file system |- | <code>79h</code> || MBR, EBR || CHS || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_79h}}APTI alternative FAT16 (CHS, SFN) (corresponds with <code>04h</code>) |- | <code>7Ah</code> || MBR, EBR || LBA || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_7Ah}}APTI alternative FAT16 (LBA, SFN) (corresponds with <code>0Eh</code>) |- | <code>7Bh</code> || MBR, EBR || CHS || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_7Bh}}APTI alternative FAT16B (CHS, SFN) (corresponds with <code>06h</code>) |- | <code>7Ch</code> || MBR, EBR || LBA || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_7Ch}}APTI alternative FAT32 (LBA, SFN) (corresponds with <code>0Ch</code>) |- | <code>7Dh</code> || MBR, EBR || CHS || x86 || Policy FS || || APTI conformant systems || {{anchor|PID_7Dh}}APTI alternative FAT32 (CHS, SFN) (corresponds with <code>0Bh</code>) |- | <code>7Eh</code> || MBR, EBR || || {{No}} || Cache || Romex Software || PrimoCache || Level 2 cache |- | <code>7Fh</code> || MBR, EBR || || || || Alternative OS Development Partition Standard || || {{anchor|PID_7Fh}} Reserved for individual or local use and temporary or experimental projects<ref name=":1" /> |- | <code>80h</code> || || || || File system || Andrew Tanenbaum || Minix 1.1-1.4a || {{anchor|PID_80h}}MINIX file system (old) |- | <code>81h</code> || || || || File system || Andrew Tanenbaum || Minix 1.4b+ || {{anchor|PID_81h}}MINIX file system (corresponds with <code>41h</code>) |- | rowspan="3" | <code>82h</code> || || || {{No}} || Swap || Linux || Linux || {{anchor|PID_82h}}Linux swap space (corresponds with <code>42h</code>) |- | || || {{No}} || Swap || Linux || GNU/Hurd || {{anchor|PID_82h}}GNU/Hurd (Hurd uses the same Linux swap file system) |- | || || x86 || Container || Sun Microsystems || || {{anchor|PID_82h}}Solaris x86 (for Sun disklabels up to 2005) (see <code>BFh</code>) |- | rowspan="2" | <code>83h</code> || || || {{Yes}} || File system || Linux || Linux || {{anchor|PID_83h}}Any native Linux file system (see <code>93h</code>, corresponds with <code>43h</code>) |- | || || {{Yes}} || File system || Linux || GNU/Hurd || {{anchor|PID_83h}}GNU/Hurd (Hurd and GRUB use the same Linux ext2 file system to run and it no longer supports UFS<ref name="hurd_ufs"/> file system, corresponds with <code>63h</code>) |- | rowspan="3" | <code>84h</code> || || || {{No}} || Hibernation || Microsoft || ? || {{anchor|PID_84h}}APM hibernation (suspend to disk, S2D)<ref name="Microsoft_2005_BB457122" /><ref name="obscure" /><ref name="Microsoft_2007_DriveLetters" /> |- | || || || Hidden FS || IBM || OS/2 || Hidden C: (FAT16)(corresponds to either 04h or 06h) |- | || || || Hibernation || Intel || Rapid Start technology || Rapid Start hibernation data<ref name="Intel_2012_RS" /> (possibly iFFS; possibly used for Intel SRT SSD cache as well) |- | <code>85h</code> || || || {{No}}, AAP || Container || Linux || Linux || {{anchor|PID_85h}}Linux extended<ref name="Brouwer_2004_LargeDisk" /> (corresponds with <code>05h</code>) |- | rowspan="2" | <code>86h</code> ||  || || || File system || Microsoft || Windows NT 4 Server || {{anchor|PID_86h}}Fault-tolerant FAT16B mirrored volume set (see <code>B6h</code> and <code>C6h</code>, corresponds with <code>06h</code>)<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | || || || Service || Linux || Linux || Linux RAID superblock with auto-detect (old) (see <code>FDh</code>){{Citation needed|date=August 2017}} |- | <code>87h</code> ||  || || || File system || Microsoft || Windows NT 4 Server || {{anchor|PID_87h}}Fault-tolerant HPFS/NTFS mirrored volume set (see <code>B7h</code> and <code>C7h</code>, corresponds with <code>07h</code>)<ref name="Microsoft_CC977219" /><ref name="Microsoft_2005_BB457122" /> |- | <code>88h</code> || || || || Service || Linux || Linux || {{anchor|PID_88h}}Linux plaintext partition table |- | <code>8Ah</code> || || || || Service || Martin Kiewitz || AirBoot || {{anchor|PID_8Ah}}AirBoot is a track0 Boot Manager with on-the-fly partition detection<ref>[http://rousseaux.github.io/netlabs.air-boot AirBoot: Martin Kiewitz Boot Manager with on-the-fly partition detection]</ref> |- | <code>8Bh</code> || || || || File system || Microsoft || Windows NT 4 Server || {{anchor|PID_8Bh}}Legacy fault-tolerant FAT32 mirrored volume set (see <code>BBh</code> and <code>CBh</code>, corresponds with <code>0Bh</code>)<ref name="Microsoft_CC977219" /> |- | <code>8Ch</code> || || || || File system || Microsoft || Windows NT 4 Server || {{anchor|PID_8Ch}}Legacy fault-tolerant FAT32 mirrored volume set (see <code>BCh</code> and <code>CCh</code>, corresponds with <code>0Ch</code>)<ref name="Microsoft_CC977219" /> |- | <code>8Dh</code> || MBR, EBR || CHS, LBA || x86, 68000, 8080/Z80 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_8Dh}}Hidden FAT12 (corresponds with <code>01h</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | <code>8Eh</code> || || || || Container | Linux || Linux || {{anchor|PID_8Eh}}Linux LVM since 1999 (see <code>FEh</code>){{Citation needed|date=August 2017}} |- | <code>90h</code> || MBR, EBR || CHS, LBA || x86, 68000, 8080/Z80 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_90h}}Hidden FAT16 (corresponds with <code>04h</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | <code>91h</code> || MBR, EBR || CHS, LBA || {{No}}, AAP || Hidden container || FreeDOS || Free FDISK || {{anchor|PID_91h}}Hidden extended partition with CHS addressing (corresponds with <code>05h</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | <code>92h</code> || MBR, EBR || CHS, LBA || x86 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_92h}}Hidden FAT16B (corresponds with <code>06h</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | rowspan="2" | <code>93h</code> || || || || File system || Andrew S. Tanenbaum | Amoeba || {{anchor|PID_93h}}Amoeba native file system |- | || || || Hidden FS || || Linux || Hidden Linux file system (see <code>83h</code>) |- | <code>94h</code> || || || || Service | Andrew S. Tanenbaum | Amoeba || {{anchor|PID_94h}}Amoeba bad block table |- | <code>95h</code> || || || || File system | MIT || EXOPC || {{anchor|PID_95h}}EXOPC native |- | <code>96h</code> || || || || File system || ? | CHRP || {{anchor|PID_96h}}ISO-9660 file system<ref name="CHRP" /> |- | <code>97h</code> || MBR, EBR || CHS, LBA || x86 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_97h}}Hidden FAT32 (corresponds with <code>0Bh</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | rowspan="3" | <code>98h</code> || MBR, EBR || LBA || x86 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_98h}}Hidden FAT32 (corresponds with <code>0Ch</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | MBR || CHS, LBA || x86 || Service FS || Datalight || ROM-DOS || Service partition (bootable FAT) ROM-DOS SuperBoot (see <code>12h</code>) |- | MBR || CHS, LBA || x86 || Service FS || Intel || ? | Service partition (bootable FAT)<ref name="obscure" /> (see <code>12h</code>) |- | <code>99h</code> || || || || File system || ? | ? | {{anchor|PID_99h}}Early Unix{{Citation needed|date=August 2017}} |- | <code>9Ah</code> || MBR, EBR || LBA || x86 || Hidden FS || FreeDOS || Free FDISK || {{anchor|PID_9Ah}}Hidden FAT16 (corresponds with <code>0Eh</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | <code>9Bh</code> || MBR, EBR || LBA || {{No}}, AAP || Hidden container || FreeDOS || Free FDISK || {{anchor|PID_9Bh}}Hidden extended partition with LBA (corresponds with <code>0Fh</code>)<ref group="nb" name="NB_HiddenFAT" /> |- | rowspan="2" | <code>9Eh</code> || || || || File system | Andy Valencia || VSTa || {{anchor|PID_9Eh}}{{Citation needed|date=August 2017}} |- | || || || File system | Andy Valencia || ForthOS || ForthOS (eForth port)<ref name="ForthOS">{{Cite web |url=http://www.forthos.org/setup.html |title=ForthOS setup instructions |access-date=31 December 2017 |archive-url=https://web.archive.org/web/20170719021419/http://www.forthos.org/setup.html |archive-date=19 July 2017 |url-status=dead }}</ref> |- | <code>9Fh</code> || || || || ? || ? | BSD/OS 3.0+, BSDI || {{anchor|PID_9Fh}} (see <code>B7h</code> and <code>B8h</code>) |- | rowspan="2" |<code>A0h</code> || MBR || || || Service FS || Hewlett-Packard || ? | {{anchor|PID_A0h}}Diagnostic partition for HP laptops<ref name="obscure" /> |- | || || || Hibernation || Phoenix, IBM, Toshiba, Sony || ? | Hibernate partition<ref name="Microsoft_2005_BB457122" />  |- | rowspan="2" | <code>A1h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_A1h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | || || || Hibernation || Phoenix, NEC || ? | Hibernate partition |- | <code>A2h</code> || MBR || CHS, LBA || ARM || Image || Altera || Cyclone V || {{anchor|PID_A2h}}Hard Processor System (HPS) ARM preloader<ref name="Altera_CycloneV_Handbook" /> |- | <code>A3h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_A3h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | <code>A4h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_A4h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | <code>A5h</code> || MBR || || || Container || FreeBSD || BSD || {{anchor|PID_A5h}}BSD slice (BSD/386, 386BSD, NetBSD (before 1998-02-19), FreeBSD)<ref name="FreeBSD_2011_DiskOrg" /> |- | rowspan="2" | <code>A6h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_A6h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | MBR || || || Container || OpenBSD || OpenBSD || OpenBSD slice |- | <code>A7h</code> || || || 386 || File system || NeXT || NeXTSTEP | {{anchor|PID_A7h}}{{Citation needed|date=August 2017}} |- | <code>A8h</code> || || || || File system || Apple || Darwin, Mac OS X || {{anchor|PID_A8h}}Apple Darwin, Mac OS X UFS<ref group="nb" name="NB_MacOSX" /> |- | <code>A9h</code> || MBR || || || Container || NetBSD || NetBSD || {{anchor|PID_A9h}}NetBSD slice<ref name="NetBSD_2011_Partitions" /> |- | <code>AAh</code> || MBR || CHS || ? || File system || Olivetti || MS-DOS || {{anchor|PID_AAh}}Olivetti MS-DOS FAT12 (1.44 MB) (corresponds with <code>06h</code>) |- | rowspan="2"| <code>ABh</code> || || || {{Yes}} || Service | Apple || Darwin, Mac OS X || {{anchor|PID_ABh}}Apple Darwin, Mac OS X boot<ref group="nb" name="NB_MacOSX" /> |- | || || || File system | Stanislav Karchebny || GO! OS || GO! |- | <code>ACh</code> || || || {{Yes}} || Service | Apple || Darwin, Mac OS X || {{anchor|PID_ACh}}Apple RAID, Mac OS X RAID<ref group="nb" name="NB_MacOSX" /> |- | <code>ADh</code> || || || || File system || Ben Avison, Acorn || RISC OS || {{anchor|PID_ADh}}ADFS / FileCore format |- | <code>AEh</code> || || || x86 || File system || Frank Barrus || ShagOS || {{anchor|PID_AEh}}ShagOS file system |- | rowspan="2"| <code>AFh</code> || || || ? | File system | Apple || Mac OS X | {{anchor|PID_AFh}}HFS and HFS+<ref group="nb" name="NB_MacOSX" /> |- | || || {{No}} || Swap || Frank Barrus || ShagOS || ShagOS swap |- | <code>B0h</code> || MBR || CHS, LBA || x86 || Blocker || Star-Tools || Boot-Star || {{anchor|PID_B0h}}Boot-Star dummy partition |- | rowspan="2" | <code>B1h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_B1h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | || || || File system | QNX Software Systems || QNX 6.x || QNX Neutrino power-safe file system<ref group="nb" name="QNX" /> |- | <code>B2h</code> || || || || File system | QNX Software Systems || QNX 6.x || {{anchor|PID_B2h}}QNX Neutrino power-safe file system<ref group="nb" name="QNX" /> |- | rowspan="2" | <code>B3h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_B3h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | || || || File system | QNX Software Systems || QNX 6.x || QNX Neutrino power-safe file system<ref group="nb" name="QNX" /> |- | <code>B4h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_B4h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | rowspan="2" | <code>B6h</code> || || || || ? | Hewlett-Packard || HP Volume Expansion | {{anchor|PID_B6h}}<ref group="nb" name="NB_HP_VolumeExpansion" /> |- | | EBR || || || File system || Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT16B mirrored master volume (see <code>C6h</code> and <code>86h</code>, corresponds with <code>06h</code>) |- | rowspan="2" | <code>B7h</code> || || || || File system || || BSDI (before 3.0) || {{anchor|PID_B7h}}BSDI native file system / swap (see <code>B8h</code> and <code>9Fh</code>) |- | | EBR || || || File system || Microsoft || Windows NT 4 Server || Corrupted fault-tolerant HPFS/NTFS mirrored master volume (see <code>C7h</code> and <code>87h</code>, corresponds with <code>07h</code>) |- | <code>B8h</code> || || || || File system || || BSDI (before 3.0) || {{anchor|PID_B8h}}BSDI swap / native file system (see <code>B7h</code> and <code>9Fh</code>) |- | rowspan="3" | <code>BBh</code> || || || || Hidden FS || PhysTechSoft, Acronis, SWsoft || BootWizard, OS Selector || {{anchor|PID_BBh}}PTS BootWizard 4 / OS Selector 5 for hidden partitions ''other'' than <code>01h</code>, <code>04h</code>, <code>06h</code>, <code>07h</code>, <code>0Bh</code>, <code>0Ch</code>, <code>0Eh</code> and unformatted partitions |- | MBR || || || Service FS | Acronis || Acronis True Image || OEM Secure Zone (corresponds to <code>BCh</code>) |- | EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT32 mirrored master volume (see <code>CBh</code> and <code>8Bh</code>, corresponds with <code>0Bh</code>) |- | rowspan="3" | <code>BCh</code> || EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT32 mirrored master volume (see <code>CCh</code> and <code>8Ch</code>, corresponds with <code>0Ch</code>) |- | MBR || LBA || || Service FS | Acronis || Acronis True Image || Acronis Secure Zone |- | MBR, EBR || || || Service FS | Paragon Software Group || Backup Capsule || Backup Capsule{{Citation needed|date=August 2017}} |- | <code>BDh</code> || || || || File system | ? | BonnyDOS/286 || {{anchor|PID_BDh}}{{Citation needed|date=August 2017}} |- | <code>BEh</code> || || || {{Yes}} || File system | Sun Microsystems || Solaris 8 || {{anchor|PID_BEh}}Solaris 8 boot |- | <code>BFh</code> || || || x86 || Container || Sun Microsystems || Solaris || {{anchor|PID_BFh}}Solaris x86 (for Sun disklabels, since 2005) (see <code>82h</code>) |- | <code>C0h</code> || MBR || CHS, LBA || x86 || Secured container || Novell, IMS || DR-DOS, Multiuser DOS, REAL/32 || {{anchor|PID_C0h}}Secured FAT partition (smaller than 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /><ref group="nb" name="NB_REAL32-Secured-FAT" /> |- | <code>C1h</code> || MBR, EBR || CHS, LBA || x86 || Secured FS || Digital Research || DR DOS 6.0+ || {{anchor|PID_C1h}}Secured FAT12 (corresponds with <code>01h</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | <code>C2h</code> || || || {{Yes}} || Hidden FS || BlueSky Innovations || Power Boot || {{anchor|PID_C2h}}Hidden Linux native file system |- | <code>C3h</code> || || || {{No}} || Hidden swap || BlueSky Innovations || Power Boot || {{anchor|PID_C3h}}Hidden Linux swap |- | <code>C4h</code> || MBR, EBR || CHS, LBA || x86 || Secured FS || Digital Research || DR DOS 6.0+ || {{anchor|PID_C4h}}Secured FAT16 (corresponds with <code>04h</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | <code>C5h</code> || MBR, EBR || CHS, LBA || {{No}}, AAP || Secured container || Digital Research || DR DOS 6.0+ || {{anchor|PID_C5h}}Secured extended partition with CHS addressing (corresponds with <code>05h</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | rowspan="2" | <code>C6h</code> || MBR, EBR || CHS, LBA || x86 || Secured FS || Digital Research || DR DOS 6.0+ || {{anchor|PID_C6h}}Secured FAT16B (corresponds with <code>06h</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT16B mirrored slave volume (see <code>B6h</code> and <code>86h</code>, corresponds with <code>06h</code>) |- | rowspan="2" | <code>C7h</code> || MBR || || {{Yes}} || File system | || Syrinx || {{anchor|PID_C7h}}Syrinx boot |- | EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant HPFS/NTFS mirrored slave volume (see <code>B7h</code> and <code>87h</code>, corresponds with <code>07h</code>) |- | <code>C8h</code> || || || || || ? | || Reserved for DR-DOS since 1997{{Citation needed|date=August 2017}} |- | <code>C9h</code> || || || || || ? | || Reserved for DR-DOS since 1997{{Citation needed|date=August 2017}} |- | <code>CAh</code> || || || || || ? | || Reserved for DR-DOS since 1997{{Citation needed|date=August 2017}} |- | rowspan="2" | <code>CBh</code> || MBR, EBR || CHS, LBA || x86 || Secured FS || Caldera || DR-DOS 7.0x || {{anchor|PID_CBh}}Secured FAT32 (corresponds with <code>0Bh</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT32 mirrored slave volume (see <code>BBh</code> and <code>8Bh</code>, corresponds with <code>0Bh</code>) |- | rowspan="2" | <code>CCh</code> || MBR, EBR || LBA || x86 || Secured FS || Caldera || DR-DOS 7.0x || {{anchor|PID_CCh}}Secured FAT32 (corresponds with <code>0Ch</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | EBR || || || File system | Microsoft || Windows NT 4 Server || Corrupted fault-tolerant FAT32 mirrored slave volume (see <code>BCh</code> and <code>8Ch</code>, corresponds with <code>0Ch</code>) |- | rowspan="2" | <code>CDh</code> || || || {{No}} || Service | Convergent Technologies, Unisys || CTOS || {{anchor|PID_CDh}}Memory dump (see <code>DDh</code> and <code>DBh</code>) |- | MBR || LBA || x86 || File system || openSUSE || Linux || openSUSE ISOHybrid ISO9660 partition (from openSUSE Leap "Live" x86 images)<ref name="openSUSE_Leap_Live" /> |- | <code>CEh</code> || MBR, EBR || LBA || x86 || Secured FS || Caldera || DR-DOS 7.0x || {{anchor|PID_CEh}}Secured FAT16B (corresponds with <code>0Eh</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | <code>CFh</code> || MBR, EBR || LBA || {{No}}, AAP || Secured container || Caldera || DR-DOS 7.0x || {{anchor|PID_CFh}}Secured extended partition with LBA (corresponds with <code>0Fh</code>)<ref group="nb" name="NB_DRDOS-Secured-FAT" /> |- | <code>D0h</code> || MBR || CHS, LBA || 386 || Secured container || Novell, IMS || Multiuser DOS, REAL/32 || {{anchor|PID_D0h}}Secured FAT partition (larger than 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr>)<ref group="nb" name="NB_MDOS-Secured-FAT" /><ref group="nb" name="NB_REAL32-Secured-FAT" /> |- | <code>D1h</code> || MBR, EBR || CHS || 386 || Secured FS || Novell || Multiuser DOS || {{anchor|PID_D1h}}Secured FAT12 (corresponds with <code>01h</code>)<ref group="nb" name="NB_MDOS-Secured-FAT" /> |- | <code>D4h</code> || MBR, EBR || CHS || 386 || Secured FS || Novell || Multiuser DOS || {{anchor|PID_D4h}}Secured FAT16 (corresponds with <code>04h</code>)<ref group="nb" name="NB_MDOS-Secured-FAT" /> |- | <code>D5h</code> || MBR, EBR || CHS || {{No}} || Secured container || Novell || Multiuser DOS || {{anchor|PID_D5h}}Secured extended partition with CHS addressing (corresponds with <code>05h</code>)<ref group="nb" name="NB_MDOS-Secured-FAT" /> |- | <code>D6h</code> || MBR, EBR || CHS || 386 || Secured FS || Novell || Multiuser DOS || {{anchor|PID_D6h}}Secured FAT16B (corresponds with <code>06h</code>)<ref group="nb" name="NB_MDOS-Secured-FAT" /> |- | <code>D8h</code> || MBR || CHS || || File system || Digital Research || CP/M-86 | {{anchor|PID_D8h}}CP/M-86 (see <code>DBh</code>){{citation needed|date=September 2012}} |- | rowspan="2" | <code>DAh</code> || || || {{No}} || Service | John Hardin || || {{anchor|PID_DAh}}Non-file system data |- | || || || Secured FS | DataPower || Powercopy Backup || Shielded disk |- | rowspan="4" | <code>DBh</code> || MBR || CHS || x86 || File system || Digital Research || CP/M-86, Concurrent CP/M-86, Concurrent DOS || {{anchor|PID_DBh}}<ref name="Elliott_1998_CPM" /> (see <code>D8h</code>)<ref name="Chappell_1994_DOS-Internals" /> |- | || || || ? | Convergent Technologies, Unisys || CTOS || ? (see <code>CDh</code> and <code>DDh</code>){{Citation needed|date=August 2017}} |- | || || x86 || Service | KDG Telemetry || D800 || boot image for x86 supervisor CPU (SCPU) module |- | MBR || CHS, LBA || x86 || Service FS || Dell || DRMK || FAT32 system restore partition (DSR) (see <code>DEh</code>) |- | <code>DDh</code> || || || {{No}} || Service | Convergent Technologies, Unisys || CTOS || {{anchor|PID_DDh}}Hidden memory dump (see <code>CDh</code> and <code>DBh</code>) |- | <code>DEh</code> || MBR || CHS, LBA || x86 || Hidden FS || Dell || || {{anchor|PID_DEh}}FAT16 utility/diagnostic partition<ref name="Microsoft_2005_BB457122" /><ref name="obscure" /><ref name="OEM">{{cite web|url=https://technet.microsoft.com/en-us/library/cc526838.aspx|title=Create Multiple Partitions on a Device|date=7 January 2009 |publisher=Microsoft TechNet|access-date=2015-04-19}}</ref> |- | rowspan="3" | <code>DFh</code> || || || || ? | Data General || DG/UX || {{anchor|PID_DFh}}DG/UX virtual disk manager{{Citation needed|date=August 2017}} |- | MBR || || || Blocker || TeraByte Unlimited || BootIt || EMBRM{{Citation needed|date=August 2017}} |- | || || || ? | ? | Aviion || {{Citation needed|date=August 2017}} |- | <code>E0h</code> || || || || File system || STMicroelectronics || || {{anchor|PID_E0h}}ST AVFS |- | <code>E1h</code> ||MBR |CHS | || File system || Storage Dimensions || SpeedStor || {{anchor|PID_E1h}}FAT12 (≤16 MB) (corresponds to <code>01h</code>)<ref name=":0" group="nb" /> |- | <code>E3h</code> || || || || File system || Storage Dimensions || SpeedStor || {{anchor|PID_E3h}}Read-only FAT12 (corresponds to <code>E1h</code>)<ref name=":0" group="nb" /> |- | <code>E4h</code> ||MBR |CHS | || File system || Storage Dimensions || SpeedStor || {{anchor|PID_E4h}}FAT16 (≤32 MB) (corresponds to <code>04h</code>)<ref name=":0" group="nb" /> |- | <code>E5h</code> || MBR || CHS || x86 || File system || Tandy || Tandy MS-DOS || {{anchor|PID_E5h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> |- | <code>E6h</code> || || || || File System | Storage Dimensions || SpeedStor || {{anchor|PID_E6h}}Read-only FAT16 (corresponds to <code>E4h</code>)<ref name=":0" group="nb" /> |- | <code>E8h</code> || MBR, EBR || CHS, LBA || {{No}} || Service | Linux || LUKS || {{anchor|PID_E8h}}Linux Unified Key Setup<ref name="Debian Bug Report 770211" /> |- | <code>EBh</code> || || || 386 || File system || Be Inc. || BeOS, Haiku || {{anchor|PID_EBh}}BFS (see <code>2Ah</code> and <code>2Bh</code>) |- | <code>ECh</code> || || || || File system || Robert Szeleney || SkyOS || {{anchor|PID_ECh}}SkyFS |- | rowspan="2" | <code>EDh</code> || MBR, EBR || CHS, LBA || x86 || Service | Matthias R. Paul || Sprytix || {{anchor|PID_EDh}}EDC loader |- | MBR || CHS, LBA || x86 || || Hewlett-Packard || EFI | Was proposed for GPT hybrid MBR<ref group="nb">Was suggested in now-superseded [http://www.t13.org/documents/UploadedDocuments/docs2009/e09127r1-EDD-4_Hybrid_MBR_support.pdf T13 EDD 4 proposal e09127r1] {{Webarchive|url=https://web.archive.org/web/20170819022607/http://www.t13.org/documents/UploadedDocuments/docs2009/e09127r1-EDD-4_Hybrid_MBR_support.pdf |date=2017-08-19 }} (2009). The successor [http://www.t13.org/Documents/UploadedDocuments/docs2010/e09127r3-EDD-4_Hybrid_MBR_boot_code_annex.pdf e09127r3] {{Webarchive|url=https://web.archive.org/web/20180501221942/http://www.t13.org/Documents/UploadedDocuments/docs2010/e09127r3-EDD-4_Hybrid_MBR_boot_code_annex.pdf |date=2018-05-01 }} (2010) now recommends to use a normal partition type (the one that a legacy OS would see) instead of this special value.</ref> |- | <code>EEh</code> || MBR || || {{No}} || Blocker || Microsoft || EFI || {{anchor|PID_EEh}}GPT protective MBR<ref name="Microsoft_2011_GPT" /><ref name="Microsoft_2005_BB457122" /> (see <code>EFh</code>) |- | <code>EFh</code> || MBR || || || Service FS | Intel || EFI || {{anchor|PID_EFh}}EFI system partition. Can be a FAT12, FAT16, FAT32 (or other) file system<ref name="Microsoft_2005_BB457122" /> (see <code>EEh</code>) |- | <code>F0h</code> || || CHS || || Service | || Linux || {{anchor|PID_F0h}}PA-RISC Linux boot loader; must reside in first physical 2 GB |- | <code>F2h</code> || MBR || CHS || x86 || File system || Sperry IT, Unisys, Digital Research || Sperry IT MS-DOS 3.x, Unisys MS-DOS 3.3, Digital Research DOS Plus 2.1 || {{anchor|PID_F2h}}Logical sectored FAT12 or FAT16<ref group="nb" name="NB_LFAT" /> secondary partition |- | rowspan="2" | <code>F4h</code> ||MBR |CHS | || File system || Storage Dimensions || SpeedStor || {{anchor|PID_F4h}}FAT16B (corresponds to <code>06h</code>)<ref name=":0" group="nb" /> |- | || || || File system || ? | Prologue || Single volume partition for NGF or TwinFS |- | <code>F5h</code> || || || || Container || ? | Prologue || {{anchor|PID_F5h}}MD0-MD9 multi volume partition for NGF or TwinFS |- | <code>F6h</code> || MBR || || || File system | Storage Dimensions || SpeedStor || {{anchor|PID_F6h}}Read-only FAT16B (corresponds to <code>F4h</code>)<ref name=":0" group="nb" /> |- | rowspan="2" | <code>F7h</code> || || || || File system || Natalia Portillo || O.S.G. || {{anchor|PID_F7h}}EFAT |- | || || || File system || DDRdrive || X1 || Solid State file system |- | <code>F8h</code> || MBR || || || Service || Arm || Arm EBBR 1.0 <ref name="EBBR_1.0" /> || Protective partition for the area containing system firmware |- | <code>F9h</code> || || || || Cache | ALC Press || Linux || {{anchor|PID_F9h}}pCache ext2/ext3 persistent cache<ref name="ALCpress_pCache" /> |- | <code>FBh</code> || || || {{No}} || File system || VMware || VMware ESX || {{anchor|PID_FBh}}VMware VMFS file system partition |- | <code>FCh</code> || || || {{No}} || Swap || VMware || VMware ESX || {{anchor|PID_FCh}}VMware swap / VMKCORE kernel dump partition |- | <code>FDh</code> || || || || Service || Linux || Linux || {{anchor|PID_FDh}}Linux RAID superblock with auto-detect (see <code>86h</code>) |- | rowspan="3" | <code>FEh</code> || || || || Service || IBM || PS/2 || {{anchor|PID_FEh}}PS/2 <abbr title="Initial Microcode Load">IML</abbr> partition<ref name="Microsoft_2005_BB457122" /><ref name="obscure" /> |- | MBR || CHS, LBA || x86 || Service FS || IBM || PS/2 || PS/2 recovery partition (FAT12 ''reference disk'' floppy image), (corresponds with <code>01h</code> if activated, all other partitions <code>+10h</code> then)<ref name="Microsoft_2005_BB457122" /> |- | || || || Service || Linux || Linux || Old Linux LVM (see <code>8Eh</code>) |- | <code>FFh</code> || MBR || CHS || {{No}} || Service | Microsoft || XENIX || {{anchor|PID_FFh}}XENIX bad block table (see <code>02h</code> and <code>03h</code>)<ref name="Chappell_1994_DOS-Internals" /> |}

== See also == * {{Section link|Disk partitioning|PC partition types}} * Extended Boot Record (EBR) * GUID Partition Table (GPT) * List of file systems * Rigid Disk Block (RDB)

== Notes == {{Div col|colwidth=30em}}

<references group="nb"> <ref group="nb" name="NB_PID_06h">MS-DOS/PC DOS 2.0-3.1 cannot cope with hard disk partitions outside the first 32 <abbr title="MegaByte (1024 KB or 1,048,576 bytes)">MB</abbr> of the disk. Therefore, FAT12 and FAT16 volumes in primary partitions physically residing outside this area must not use partition IDs <code>01h</code> and <code>04h</code>, even if they were otherwise small enough to be recognized by these DOS versions. In order to hide these volumes from these DOS issues <code>06h</code> can be used instead. DOS distinguishes FAT types by their number of clusters, not by their partition ID, therefore, this does not cause any problems for DOS 3.31 and higher except for a possibly wrong file system type display in FDISK.</ref> <ref group="nb" name="NB_HiddenBootManager">Used by OS/2 Boot Manager: <code>0Ah</code>, <code>11h</code>, <code>14h</code>, <code>15h</code>, <code>16h</code>, <code>17h</code>, <code>1Bh</code>, <code>1Ch</code>, <code>1Eh</code>, <code>1Fh</code>.</ref> <ref group="nb" name="NB_HiddenFAT">Used by Free FDISK of FreeDOS: <code>8Dh</code>, <code>90h</code>, <code>91h</code>, <code>92h</code>, <code>97h</code>, <code>98h</code>, <code>9Ah</code>, <code>9Bh</code>.</ref> <ref group="nb" name="NB_LFAT">Known partition IDs for logical sectored FATs include: <code>08h</code> (Commodore MS-DOS 3.x), <code>11h</code> (Leading Edge MS-DOS 3.x), <code>14h</code> (AST MS-DOS 3.x), <code>24h</code> (NEC MS-DOS 3.30), <code>56h</code> (AT&T MS-DOS 3.x), <code>E5h</code> (Tandy MS-DOS), <code>F2h</code> (Sperry IT MS-DOS 3.x, Unisys MS-DOS 3.3 — also used by Digital Research DOS Plus 2.1). While non-standard and sub-optimal these FAT variants are perfectly valid according to the specifications of the file system itself, although default issues of MS-DOS / PC DOS 3.x were not able to cope with them. Most of these vendor specific FAT12 and FAT16 variants can be mounted by more flexible file system implementations in operating systems such as DR-DOS simply by changing the partition ID to one of the recognized types. Also, if they no longer need to be recognized by their original operating systems, existing partitions can be "converted" into FAT12 and FAT16 volumes compliant with versions of MS-DOS/PC DOS like 5.0-6.3, which do not support logical sector sizes different from 512 bytes, by switching to a BPB with 32-bit entry for the number of sectors, as introduced since DOS 3.31, keeping the cluster size and reducing the logical sector size in the BPB down to 512 bytes, while at the same time increasing the counts of logical sectors per cluster, reserved logical sectors, total logical sectors, and logical sectors per FAT by the same factor.</ref> <ref group="nb" name="NB_HP_VolumeExpansion">HP ''Volume Expansion'' is a variant of ''SpeedStor'' and uses partition IDs <code>21h</code>, <code>A1h</code>, <code>A3h</code>, <code>A4h</code>, <code>A6h</code>, <code>B1h</code>, <code>B3h</code>, <code>B4h</code>, and <code>B6h</code>.</ref> <ref group="nb" name="NB_MacOSX">Apple Mac OS X uses partition IDs <code>A8h</code>, <code>ABh</code>, <code>ACh</code>, and <code>AFh</code>.</ref> <ref group="nb" name="NB_DRDOS-Secured-FAT">Versions of DR DOS 6.0 and higher use several of these partition IDs for secured FAT partitions with single-user security: <code>C0h</code>, <code>C1h</code>, <code>C4h</code>, <code>C5h</code>, <code>C6h</code>, <code>CBh</code>, <code>CCh</code>, <code>CEh</code>, <code>CFh</code>.</ref> <ref group="nb" name="NB_MDOS-Secured-FAT">Versions of Multiuser DOS use these partition IDs for secured FAT partitions with multi-user security: <code>D0h</code>, <code>D1h</code>, <code>D4h</code>, <code>D5h</code>, <code>D6h</code>.</ref> <ref group="nb" name="NB_REAL32-Secured-FAT">Versions of IMS REAL/32 use partition IDs <code>C0h</code> and <code>D0h</code> for multi-user security.</ref> <ref group="nb" name="QNX">QNX partition IDs <code>07h</code>, <code>08h</code>, <code>09h</code>, <code>4Dh</code> (77), <code>4Eh</code> (78), <code>4Fh</code> (79), as well as <code>B1h</code> (177), <code>B2h</code> (178) and <code>B3h</code> (179).</ref></references>{{div col end}}<references group="nb"/>

== References == <references>

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</references>

==Further reading== *{{cite book |title=Anwenderdokumentation - Anleitung für den Systemprogrammierer - MOS DCP 1700 |id=C3013-0000-0 M3030, Textdiskette DCP1700 T1/2 C3010-9991-2M3020, Disk-Nr.: 5962 /88 ROBOTRON PROJEKT DRESDEN KA2 DD-DS 80*16*256 |language=de |publisher=VEB Robotron-Projekt Dresden |version=3.20 |location=Dresden, East-Germany |date=1988-01-29 |chapter=5.3.2.2. Partition-Tabelle |url=http://www.robotron-net.de/Service/Dokus/DCP20sys.pdf |access-date=2021-12-03 |url-status=live |archive-url=https://web.archive.org/web/20210829191036/http://www.robotron-net.de/Service/Dokus/DCP20sys.pdf |archive-date=2021-08-29}} (NB. Has partition IDs for the East-German MS-DOS clone DCP 1700 (including R/W and R/O), the CP/M-86 clone SCP 1700, the VENIX clone MUTOS and the iRMX clone BOS1810.)

Category:Disk file systems Category:Disk partitions Category:DOS technology Category:IBM PC compatibles

ca:Partició de disc