→The IDEDOS System Partition
The IDEDOS System Partition is normally the first partition on the drive located at Cylinder 0, Head 0, Sector 1 (C0/H0/S1).
The specification also allows placing the system partition at Cylinder 0, Head 1, Sector 1 (C0/H1/S1) to allow an
MS-DOS Master Boot Record to be present.
The IDEDOS System Partition contains the Partition Table for the drive. The Partition Table consists of a number of Partition Table Entries each 64 bytes long containing the partition type, location, size, and additional type specific information.