/// <summary>
/// Initializes a new MBR object getting the content of the first block of the disk
/// </summary>
/// <param name="aMBR">Byte rapresentation of the first disk block</param>
public MBR(byte[] aMBR)
{
Extras.CopyByteToByte(aMBR, 0, Bootable, 0, 440);
Signature = BitConverter.ToUInt32(aMBR, 440);
ParsePartition(aMBR, 446);
ParsePartition(aMBR, 462);
ParsePartition(aMBR, 478);
ParsePartition(aMBR, 494);
}
/// <summary>
/// Partitioning function for devices that present a choise of the device to partition.
/// </summary>
/// <param name="list">The list of the devices to choose from</param>
public static void CreatePartitions(IDE[] list)
{
IDE Device = null;
int partnum = 0;
ulong DispCount = 0;
Console.WriteLine("Welcome in the NoobOS Partitioning Tool");
do
{
Console.WriteLine("Wich device do you want to use?");
for (int i = 0; i < list.Length; i++)
{
Console.WriteLine(" --- Device N." + (i + 1) + " Size: " + (list[i].BlockSize * list[i].BlockCount));
}
Console.Write("Insert Number: ");
String nums = Console.ReadLine();
int num = int.Parse(nums) - 1;
if (num >= 0 && num < list.Length)
{
Device = list[num];
DispCount = list[num].BlockCount - 1;
}
} while (Device == null);
Console.WriteLine("How many primary partitions do you want to have? (Max. 4)");
do
{
Console.Write("Insert Number: ");
String nums = Console.ReadLine();
partnum = int.Parse(nums);
} while (partnum == 0 || partnum > 4);
uint mbrpos = 446;
Byte[] type = new Byte[] { 0x00, 0x00, 0x00, 0x00 };
uint[] StartBlock = new uint[] { 1, 0, 0, 0 };
uint[] BlockNum = new uint[] { 0, 0, 0, 0 };
for (int i = 0; i < partnum; i++)
{
type[i] = 0xFA;
Console.Write("How many blocks for Partition N. " + (i + 1) + "? (Max: " + (DispCount - (uint)(partnum - (i + 1))).ToString() + "): ");
String nums = Console.ReadLine();
uint num = (uint)int.Parse(nums);
if (num >= 0 && num <= DispCount - (uint)(partnum - (i + 1)))
{
BlockNum[i] = num;
if (i < partnum - 1)
{
StartBlock[i + 1] = (num) + StartBlock[i];
}
DispCount = DispCount - (num);
}
else
{
i--;
}
}
Byte[] data = Device.NewBlockArray(1);
Device.ReadBlock(0, 1, data);
for (int i = 0; i < 4; i++)
{
mbrpos += 4;
data[mbrpos] = type[i];
mbrpos += 4;
Byte[] b = BitConverter.GetBytes(StartBlock[i]);
Extras.CopyByteToByte(b, 0, data, (int)mbrpos, b.Length);
mbrpos += 4;
b = BitConverter.GetBytes(BlockNum[i]);
Extras.CopyByteToByte(b, 0, data, (int)mbrpos, b.Length);
mbrpos += 4;
Device.WriteBlock(StartBlock[i], 1, Device.NewBlockArray(1));
Console.WriteLine("Partition N. " + (i + 1) + " Start: " + (StartBlock[i]).ToString() + " BlockCount: " + (BlockNum[i]).ToString());
}
Device.WriteBlock(0, 1, data);
}