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  2. GUID Partition Table - Wikipedia

    en.wikipedia.org/wiki/GUID_Partition_Table

    Like MBR, GPT uses logical block addressing (LBA) in place of the historical cylinder-head-sector (CHS) addressing. The protective MBR is stored at LBA 0, and the GPT header is in LBA 1, with a backup GPT header stored at the final LBA. The GPT header has a pointer to the partition table (Partition Entry Array), which is typically at LBA 2 ...

  3. Device configuration overlay - Wikipedia

    en.wikipedia.org/wiki/Device_configuration_overlay

    It can be used to create/remove Host Protected Area (HPA) (using command SET MAX) and create/remove DCO hidden area (using command DCO MODIFY). It also can do other functions on the DCO. Data Synergy's freeware ATATool utility can be used to detect a DCO from a Windows environment. Recent versions allow a DCO to be created, removed or frozen. [3]

  4. Partition type - Wikipedia

    en.wikipedia.org/wiki/Partition_type

    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 ...

  5. Microsoft Reserved Partition - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Reserved_Partition

    For example, the Logical Disk Manager (LDM), on dynamic disks, stores metadata in a 1 MB area at the end of the disk which is not allocated to any partition. [3] The UEFI specification does not allow hidden sectors on GPT-formatted disks. Microsoft reserves a chunk of disk space using this MSR partition type, to provide an alternative data ...

  6. Microsoft basic data partition - Wikipedia

    en.wikipedia.org/wiki/Microsoft_basic_data_partition

    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 AF9B60A0-1431-4F62-BC68-3311714A69AD.

  7. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    The terms partition table and partition map are similar terms and can be used interchangeably. The term is most commonly associated with the MBR partition table of a Master Boot Record (MBR) in PCs , but it may be used generically to refer to other formats that divide a disk drive into partitions, such as: GUID Partition Table (GPT), Apple ...

  8. UEFI - Wikipedia

    en.wikipedia.org/wiki/UEFI

    From GRUB's perspective, no such partition type exists in case of MBR partitioning. This partition is not required if the system is UEFI-based because no embedding of the second-stage code is needed in that case. [19] [43] [45] UEFI systems can access GPT disks and boot directly from them, which allows Linux to use UEFI boot methods.

  9. Master boot record - Wikipedia

    en.wikipedia.org/wiki/Master_boot_record

    Consequently, a different partitioning scheme must be used for larger disks, as they have become widely available since 2010. The MBR partitioning scheme is therefore in the process of being superseded by the GUID Partition Table (GPT). The official approach does little more than ensuring data integrity by employing a protective MBR ...