EqualHeader compares two headers and returns true if they match.

EqualParts compares the Parts arrays from two GPTs and returns an error if they differ.

GetBlockSize returns the block size of device.

New reads in the MBR, primary and backup GPT from a disk and returns a pointer to them.

Table reads a GPT table at the given offset.

Write writes the MBR and primary and backup GPTs to w.

They claim it can vary.

("EFI PART", 45h 46h 49h 20h 50h 41h 52h 54h on little-endian machines).

PartitionTable defines all the partition table information.