Module mbr 

Master Boot Record (MBR) module

This module provides functionality for working with MBR (Master Boot Record) partition tables, which are used in traditional BIOS-based systems.

Features

• Parse and validate MBR structures from raw bytes or devices
• Create and modify MBR partition tables
• Work with individual partition entries
• Create partition devices for accessing individual partitions
• Utility functions for common MBR operations
• Type-safe partition type enumeration

Examples

extern crate alloc;

use file_system::{MemoryDevice, mbr::{Mbr, PartitionKind, create_partition_device}};

let device = MemoryDevice::<512>::new(4 * 1024 * 1024);

// Create a new MBR
let mut mbr = Mbr::new_with_signature(0x12345678);
// Add a FAT32 partition
mbr.add_partition(PartitionKind::Fat32Lba, 2048, 204800, true).unwrap();

// Write MBR to the device
mbr.write_to_device(&device).unwrap();

// Read MBR from a device
let mbr = Mbr::read_from_device(&device).unwrap();

// Display MBR information
println!("{}", mbr);

// Get all valid partitions
let partitions = mbr.get_valid_partitions();

// Create a partition device
if let Some(partition) = partitions.first() {
    let partition_device = create_partition_device(&device, partition).unwrap();
}

Structs

Mbr

Master Boot Record structure (512 bytes)

PartitionEntry

MBR partition table entry structure (16 bytes).

PartitionStatistics

Comprehensive statistics about partitions in an MBR.

Enums

Error

PartitionKind

MBR partition type enumeration with comprehensive type definitions.

Functions

backup_mbr

Create a backup of an MBR as a byte array.

clone_mbr

Clone an MBR from one device to another.

create_all_partition_devices

Create partition devices for all valid partitions in an MBR.

create_basic_mbr

Create a basic MBR with a single partition covering most of the disk.

create_partition_device

Create a partition device from an MBR partition entry.

find_partitions_by_type

Find partitions of a specific type within an MBR.

format_disk_and_get_first_partition

Format disk to MBR if it doesn’t contain valid MBR and return first partition device

has_valid_mbr

Check if a device contains a valid MBR.

is_gpt_disk

Check if a device uses GPT (GUID Partition Table) instead of MBR.

restore_mbr

Restore an MBR from a backup byte array.

scan_mbr_partitions

Scan a device for MBR and return partition information.

validate_mbr

Validate MBR structure and partitions for consistency and correctness.

Type Aliases

Result