Function clone_mbr 

pub fn clone_mbr(
    source_device: &impl DirectBlockDevice,
    target_device: &impl DirectBlockDevice,
) -> Result<()>

Clone an MBR from one device to another.

This function reads the MBR from a source device, validates it for consistency, and writes it to a target device. This is useful for creating exact copies of partition layouts or backing up partition tables.

Arguments

• Source_device - Device to read the MBR from
• Target_device - Device to write the MBR to

Returns

• Ok(()) - MBR successfully cloned
• Err(Error) - Error reading, validating, or writing MBR

Examples

extern crate alloc;
use file_system::{MemoryDevice, mbr::{Mbr, PartitionKind, {clone_mbr, has_valid_mbr}}};

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

// Create a valid MBR on source device first
let mut mbr = Mbr::new_with_signature(0x12345678);
mbr.add_partition(PartitionKind::Fat32Lba, 2048, 1024, true).unwrap();
mbr.write_to_device(&source).unwrap();

// Now clone the MBR to target
clone_mbr(&source, &target).unwrap();

// Both devices now have valid MBRs
assert_eq!(has_valid_mbr(&source), has_valid_mbr(&target));