Microsoft basic data partition

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Screenshot of GNU Parted showing Microsoft basic data partitions within a GUID Partition Table
Example of Microsoft basic data partitions within a GUID Partition Table (GPT). GNU Parted marked one with msftdata flag (visible), the other one is a Windows Recovery Environment partition (hidden)
Microsoft-defined GPT attribute flags for BDPs[1]
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 operating systems, when using basic disk partitioned with GUID Partition Table (GPT) layout, a basic data partition (BDP) is any partition identified with Globally Unique Identifier (GUID) of Page Template:Mono/styles.css has no content.EBD0A0A2-B9E5-4433-87C0-68B6B72699C7.[2]

According to Microsoft, the basic data partition is the equivalent to master boot record (MBR) partition types Page Template:Mono/styles.css has no content.0x06 (FAT16B), Page Template:Mono/styles.css has no content.0x07 (NTFS or exFAT), and Page Template:Mono/styles.css has no content.0x0B (FAT32).[2] In practice, it is equivalent to Page Template:Mono/styles.css has no content.0x01 (FAT12), Page Template:Mono/styles.css has no content.0x04 (FAT16), Page Template:Mono/styles.css has no content.0x0C (FAT32 with logical block addressing), and Page Template:Mono/styles.css has no content.0x0E (FAT16 with logical block addressing) types as well.

A basic data partition can be formatted with any file system, although most commonly BDPs are formatted with the NTFS, exFAT, or FAT32 file systems. To programmatically determine which file system a BDP contains, Microsoft specifies that one should inspect the BIOS Parameter Block that is contained in the BDP's Volume Boot Record.

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 data partition identified with GUID Page Template:Mono/styles.css has no content.AF9B60A0-1431-4F62-BC68-3311714A69AD. This is analogous to the conversion from partition types Page Template:Mono/styles.css has no content.0x01, Page Template:Mono/styles.css has no content.0x04, Page Template:Mono/styles.css has no content.0x06, Page Template:Mono/styles.css has no content.0x07, Page Template:Mono/styles.css has no content.0x0B, Page Template:Mono/styles.css has no content.0x0C, and Page Template:Mono/styles.css has no content.0x0E to partition type Page Template:Mono/styles.css has no content.0x42 on MBR partitioned disks.

Linux used the same partition type GUID for basic data partition as Windows prior to introduction of a Linux specific Data Partition GUID Page Template:Mono/styles.css has no content.0FC63DAF-8483-4772-8E79-3D69D8477DE4.[3][4]

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."How Basic Disks and Volumes Work". Microsoft TechNet. March 28, 2003.
  2. ^ a b Page Module:Citation/CS1/styles.css has no content."Windows GPT Implementation". Windows and GPT FAQ.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Smith, Rod (June 23, 2011). "Need for a Unique Linux GPT GUID Type Code". bug-parted (Mailing list). Retrieved April 10, 2013 – via lists.gnu.org.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Smith, Rod (June 10, 2012), Using the GPT Linux Filesystem Data Type Code

See also

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