Basic Data Partition
Encyclopedia
| Bit number | Meaning |
|---|---|
| 60 | The volume is read-only and may not be mounted read-write. |
| 62 | The volume is hidden. |
| 63 | The operating system may not automatically assign a drive letter to the volume. |
In Microsoft
Microsoft
Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...
operating system
Operating system
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...
s, when using basic disk partitioned with GUID Partition Table
GUID Partition Table
In computer hardware, GUID Partition Table is a standard for the layout of the partition table on a physical hard disk. Although it forms a part of the Extensible Firmware Interface standard , it is also used on some BIOS systems because of the limitations of MBR partition tables, which restrict...
(GPT) layout, a basic data partition (BDP) is any partition identified with Globally Unique Identifier
Globally Unique Identifier
A globally unique identifier is a unique reference number used as an identifier in computer software. The term GUID also is used for Microsoft's implementation of the Universally unique identifier standard....
(GUID) of EBD0A0A2-B9E5-4433-87C0-68B6B72699C7.
In the GPT scheme, BDPs are the only partition types which Windows XP
Windows XP
Windows XP is an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops and media centers. First released to computer manufacturers on August 24, 2001, it is the second most popular version of Windows, based on installed user base...
64-bit can mount and normally assign drive letters.
According to Microsoft, the basic data partition is the equivalent to partition types 0x06, 0x07, and 0x0B (FAT16, NTFS
NTFS
NTFS is the standard file system of Windows NT, including its later versions Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows 7....
, FAT32) in the traditional MBR partition table
Master boot record
A master boot record is a type of boot sector popularized by the IBM Personal Computer. It consists of a sequence of 512 bytes located at the first sector of a data storage device such as a hard disk...
. In practice it is equivalent to 0x01, 0x04, 0x0C, and 0x0E (various older FAT partitions) types as well.
A Basic Data Partition can be formatted with any filesystem format, although most commonly BDPs are formatted with the FAT32 or NTFS filesystem formats. To programatically determine which filesystem format a BDP contains, Microsoft specifies that one should inspect the BIOS Parameter Block
BIOS parameter block
In computing, the BIOS parameter block, often shortened to BPB, is a data structure in the Volume Boot Record describing the physical layout of a data storage volume. On partitioned devices, such as hard disks, the BPB describes the volume partition, whereas, on unpartitioned devices, such as...
that is contained in the BDP's Volume Boot Record
Volume Boot Record
A volume boot record is a type of boot sector introduced by the IBM Personal Computer...
.
When a Microsoft operating system converts a GPT-partitioned basic disk to a dynamic disk, all BDPs are combined and converted to a single Logical Disk Manager
Logical Disk Manager
The Logical Disk Manager is an implementation of a logical volume manager for Microsoft Windows NT, developed by Microsoft and Veritas Software. It was introduced with the Windows 2000 operating system, and is supported in Windows XP, Windows Server 2003, Windows Vista and Windows 7...
data partition identified with GUID AF9B60A0-1431-4F62-BC68-3311714A69AD. This is analogous to the conversion from partition types 0x01, 0x04, 0x06, 0x07, 0x0B, 0x0C, and 0x0E to partition type 0x42 on MBR partitioned disks.
Previously Linux used the same partition type GUID for basic data partition as Windows until a Linux specific Data Partition GUID 0FC63DAF-8483-4772-8E79-3D69D8477DE4 was defined. See GUID Partition Table
GUID Partition Table
In computer hardware, GUID Partition Table is a standard for the layout of the partition table on a physical hard disk. Although it forms a part of the Extensible Firmware Interface standard , it is also used on some BIOS systems because of the limitations of MBR partition tables, which restrict...
.
See also
- Microsoft Reserved PartitionMicrosoft Reserved PartitionThe Microsoft Reserved Partition, or MSR, is a partition on a data storage device that is labelled with Globally Unique Identifier equal to E3C9E316-0B5C-4DB8-817D-F92DF00215AE. The containing storage device has to use the new GUID Partition Table format, not the traditional master boot record ...
(MSR), a reserved partition on GPT disk - EFI System PartitionEFI System PartitionThe EFI System partition is a partition on a data storage device that is used by machines that adhere to the Extensible Firmware Interface. It contains the boot loader programs for all operating systems installed on the device, device driver files for other devices, and system utility programs...
(ESP), a reserved partition on GPT disk - Disk partitioningDisk partitioningDisk partitioning is the act of dividing a hard disk drive into multiple logical storage units referred to as partitions, to treat one physical disk drive as if it were multiple disks. Partitions are also termed "slices" for operating systems based on BSD, Solaris or GNU Hurd...