| 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. |
InMicrosoftoperating systems, when usingbasic disk partitioned withGUID Partition Table (GPT) layout, abasic data partition (BDP) is anypartition identified withGlobally Unique Identifier (GUID) ofEBD0A0A2-B9E5-4433-87C0-68B6B72699C7.[2]
According to Microsoft, the basic data partition is the equivalent tomaster boot record (MBR) partition types0x06 (FAT16B),0x07 (NTFS orexFAT), and0x0B (FAT32).[2] In practice, it is equivalent to0x01 (FAT12),0x04 (FAT16),0x0C (FAT32 withlogical block addressing), and0x0E (FAT16 with logical block addressing) types as well.
A basic data partition can be formatted with anyfile 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 theBIOS Parameter Block that is contained in the BDP'sVolume Boot Record.
When a Microsoft operating system converts a GPT-partitioned basic disk to adynamic disk, all BDPs are combined and converted to a singleLogical Disk Manager data partition identified with GUIDAF9B60A0-1431-4F62-BC68-3311714A69AD. This is analogous to the conversion from partition types0x01,0x04,0x06,0x07,0x0B,0x0C, and0x0E to partition type0x42 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 GUID0FC63DAF-8483-4772-8E79-3D69D8477DE4.[3]
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