mac os format usb drive fat with master boot record scheme

Most administrators who have not installed Windows 2003 Server with Service Pack 1 or the 64-bit version of Windows XP Professional will find the concept of partition styles a bit foreign. In How to Cheat at Microsoft Vista Administration, 2007 Partition Style The VBR is created when the drive is high level formatted for the use with a particular operating system.

Once the active partition is identified control is passed to that partitions boot sector, sometimes referred to as the volume boot record (VBR). During system start up the MBR code is executed first, and is responsible for parsing the partition table and identifying which partition is marked as active. The partition table informs of the start position and length of each partition on the hard disk. The MBR signature, sometimes referred to as the magic number, is set to value 0xAA55, which simply identifies it as a valid MBR. It is used for purposes such as identifying the boot volume, and associating partitions and volumes with a specific drive. The disk signature is a unique four byte identifier for the hard drive, that is to say it should be unique for each drive attached to a system. The MBR is comprised of a small section of operating system independent code, a disk signature, the partition table and an MBR signature.

It is loaded into memory as one of the first actions during system start up. The MBR is stored on the first sector of the hard disk and is created along with the first partition on the drive. David Day, in Cyber Crime and Cyber Terrorism Investigator's Handbook, 2014 Master Boot Record

Mac os format usb drive fat with master boot record scheme