Function create_basic_mbr

pub fn create_basic_mbr(
    disk_signature: u32,
    partition_type: PartitionKind,
    total_sectors: u32,
) -> Result<Mbr>

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

This function creates a simple MBR structure with one partition that uses most of the available disk space. It leaves 2048 sectors at the beginning for proper alignment, which is standard practice for modern storage devices.

Arguments

• Disk_signature - Unique 32-bit signature for the disk
• Partition_type - Type of partition to create (e.g., FAT32, Linux, etc.)
• Total_sectors - Total number of sectors available on the disk

Returns

• Ok(MBR_type) - Successfully created MBR with single partition
• Err(Error::InvalidParameter) - Disk is too small for a partition

Examples

use file_system::*;

// Create MBR for a 4MB device (8192 sectors)
let mbr = MBR_type::Create_basic(0x12345678, Partition_type_type::Fat32_lba, 8192).unwrap();

// The MBR will have one FAT32 partition starting at sector 2048
let partitions = mbr.get_valid_partitions();
assert_eq!(partitions.len(), 1);
assert_eq!(partitions[0].get_start_lba(), 2048);