gpt

package
v1.0.30 Latest Latest
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 Go to latest Published: Oct 31, 2026 License: Apache-2.0 Imports: 6 Imported by: 0

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Constants

View Source 
const (
	Signature  = "EFI PART"
	SectorSize = 0x200
)
View Source 
const (
	HFSPlus            = "48465300-0000-11AA-AA11-00306543ECAC"
	Apple_APFS         = "7C3457EF-0000-11AA-AA11-00306543ECAC"
	Apple_UFS          = "55465300-0000-11AA-AA11-00306543ECAC"
	ZFS                = "6A898CC3-1DD2-11B2-99A6-080020736631"
	Apple_RAID         = "52414944-0000-11AA-AA11-00306543ECAC"
	Apple_RAID_offline = "52414944-5F4F-11AA-AA11-00306543ECAC"
	Apple_Recovery_HD  = "426F6F74-0000-11AA-AA11-00306543ECAC"
	Apple_Label        = "4C616265-6C00-11AA-AA11-00306543ECAC"
	AppleTV_Recovery   = "5265636F-7665-11AA-AA11-00306543ECAC"
	HFSPlus_FileVault  = "53746F72-6167-11AA-AA11-00306543ECAC"
	None               = "00000000-0000-0000-0000-000000000000"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type GUIDPartitionTable 

type GUIDPartitionTable struct {
	Header     Header
	Partitions []Partition
}

GUIDPartitionTable is a GPT table object

func NewGUIDPartitionTable 

func NewGUIDPartitionTable(r io.Reader) (*GUIDPartitionTable, error)

NewGUIDPartitionTable reads a GPT from the given io.Reader

func (GUIDPartitionTable) CalulatePartitionsCRC 

func (g GUIDPartitionTable) CalulatePartitionsCRC() uint32

CalulatePartitionsCRC calculates the partition tables's CRC32 hash 

type Header struct {
	Signature       magic
	Revision        uint32
	HeaderSize      uint32
	CRC32           uint32
	Reserved        uint32
	HeaderStartLBA  uint64
	BackupLBA       uint64
	FirstUsableLBA  uint64
	LastUsableLBA   uint64
	DiskGUID        guid
	EntriesStart    uint64
	EntriesCount    uint32
	EntriesSize     uint32
	PartitionsCRC32 uint32
	Padding         [420]byte
}

Header is a GPT header object

func (Header) CalulateCRC 

func (h Header) CalulateCRC() uint32

CalulateCRC calculates the header's CRC32 hash

func (Header) String 

func (h Header) String() string

func (Header) Verify 

func (h Header) Verify() error

Verify verifies the header

type Partition 

type Partition struct {
	Type               guid
	ID                 guid
	StartingLBA        uint64
	EndingLBA          uint64
	Attributes         uint64
	PartitionNameUTF16 [72]uint8
}

Partition is a GPT partition object

func (Partition) IsEmpty 

func (p Partition) IsEmpty() bool

IsEmpty returns if the partiton is empty

func (Partition) LookupType 

func (p Partition) LookupType() string

LookupType returns the string name for a given partition type if known otherwise it will return the GUID

func (Partition) Name 

func (p Partition) Name() string

Name returns the partiton's name

func (Partition) String 

func (p Partition) String() string

Source Files

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