Master Boot Record
From Just Solve the File Format Problem
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The '''Master Boot Record''' is the first sector of a [[wikipedia:IBM PC compatible|PC]] disk. It contains the first stage of the boot loader and a partition table. A valid MBR ends with the byte sequence {{magic|55 aa}}. | The '''Master Boot Record''' is the first sector of a [[wikipedia:IBM PC compatible|PC]] disk. It contains the first stage of the boot loader and a partition table. A valid MBR ends with the byte sequence {{magic|55 aa}}. | ||
| − | During booting the PC [[BIOS]] loads the MBR at linear address 0x7c00 and passes control to it (at real mode address | + | During booting the PC [[BIOS]] loads the MBR at linear address 0x7c00 and passes control to it (at real mode address 07c0:0000, or sometimes 0000:7c00). The MBR code is responsible for loading the rest of the boot loader, which then loads the operating system. |
== Resources == | == Resources == | ||
Revision as of 14:29, 15 March 2015
The Master Boot Record is the first sector of a PC disk. It contains the first stage of the boot loader and a partition table. A valid MBR ends with the byte sequence 55 aa.
During booting the PC BIOS loads the MBR at linear address 0x7c00 and passes control to it (at real mode address 07c0:0000, or sometimes 0000:7c00). The MBR code is responsible for loading the rest of the boot loader, which then loads the operating system.
