Master Boot Record

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* [ MBR format poster]
* [ MBR format poster]
[[category:Filesystem]] [[category:Operating Systems]] [[Category:File format details]]
[[category:Operating Systems]]
[[Category:File format details]]

Latest revision as of 14:49, 15 August 2017

File Format
Name Master Boot Record
Kaitai Struct Spec mbr_partition_table.ksy

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.

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