Analyze GPT



       


GUID Partition Table (GPT)

It is in LBA 1 (LBA 0 is Protective MBR)
Offset: Hex [Dec] Length (Bytes) Description
 0x00 [0] 8 Signature ["EFI PART"]
 0x08 [8] 4 Version or Revision No.
 0x0C [12] 4 GPT Header Size
 0x10 [16] 4 CRC32 checksum
 0x14 [20] 4 Reserved (Has to be 0)
 0x18 [24] 8 Header Location (LBA 1)
 0x20 [32] 8 Backup Header Location
 0x28 [40] 8 First Usable LBA for Partitions
 0x30 [48] 8 Last Usable LBA
 0x38 [56] 16 Disk GUID
 0x48 [72] 8 Starting LBA of Partition Entries
 0x50 [80] 4 Number of Partition Entries
 0x54 [84] 4 SIze of a Single Partition Entry (Default is 0x80/128)
 0x58 [88] 4 CRC32 Checksum of Partition Entries
 0x5C [92] 420 Reserved


Partition Entry

Offset: Hex [Dec] Length (Bytes) Description
 0x00 [0] 1 Bootable Flag (0x80 indicates it is Bootable)
 0x01 [1] 3 Starting CHS Address
 0x04 [4] 1 Partition Type
 0x05 [5] 3 Ending CHS Address
 0x08 [8] 4 Starting LBA Offset of Sector
 0x0C [12] 4 Partition Sector Count