/// <summary>
/// Gets the boot sector of a given drive.
/// <remarks>The drive letter must follow this pattern X:</remarks>
/// </summary>
/// <param name="driveLetter">The drive letter in this format X:</param>
/// <returns>The boot sector of the specified drive.</returns>
public static BootSector GetBootSector(string driveLetter)
{
byte[] bootSectorData = new byte[BootSectorSize];
string drive = @"\\.\" + driveLetter;
IntPtr hardDiskPointer = SystemIO.OpenFile(drive);
// Seeks the start of the partition
SystemIO.SeekAbsolute(hardDiskPointer, 0);
// Read the first reserved sector of the drive data (Boot Sector)
// The data should be read with a chunk of 512 X byte.
SystemIO.ReadBytes(hardDiskPointer, bootSectorData, BootSectorSize);
// Release IO handle
SystemIO.CloseHandle(hardDiskPointer);
// Prevent the GC from messing up with the position of the buffer in the heap.
GCHandle pinnedBootSectorData = GCHandle.Alloc(bootSectorData, GCHandleType.Pinned);
// Marshaling the buffer into a valid data structucture.
var bootSector = (BootSector)Marshal.PtrToStructure(
pinnedBootSectorData.AddrOfPinnedObject(),
typeof(BootSector)
);
// Free up the pinned buffer.
pinnedBootSectorData.Free();
return(bootSector);
}
