MBR DBR Partitioning System details

First, MBR

The MBR is in 0 tracks.

MBR is composed of three parts

(1). 446 byte boot code for booting the system

(2). A primary partition table with a primary partition table that occupies a maximum of 4 primary partitions in bytes. (All logical partitions are counted as one primary partition)

{ Each of these bytes is:

【1the activity flag(Events: [+], non-active: [xx]); back3bit is the beginningCHS {occupy4of bytes}"2the partition format(ntfs[07],ft32[0b]/[0c],[0b]ClusterXiao, [0C]Large Cluster); back3the bits are over.CHS {occupy4of bytes};

" { occupy bytes }

"4" drive letter size { occupies 4 bytes };}

(3). 2 byte 0X55 0XAA partition end flag.

Example : A hard disk is divided into three primary partitions, the first one being the active partition.

650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M02/82/9B/wKioL1dc237DZkILAAFQWNcW9rA162.png "title=" MBR DBR EBR "alt=" Wkiol1dc237dzkilaafqwncw9ra162.png "/>

Partition format the DBR backup for NTFS NTFS partition at the end of the partition, does not count in the partition size

0B,0C DBR Backup in FAT32 FAT32 partition format , typically in DBR the sixth sector in the back

Second, DBR

Determine if it is DBR

1. start EB (FAT32)

EB (NTFS)

2. A paragraph of English tips

3.55AA End

FAT32 partition start coordinates 1C 1D 1E 1F

Partition size coordinates

NTFS partition start coordinates 1C 1D 1E 1F

Partition size coordinates 2A 2B

Tips:ntfs partition table,MBR partition table size is 1more than DBR partition size. Because DBR has a backup.

This article is from the Data Recovery Lab blog, so be sure to keep this source http://jerryvv.blog.51cto.com/2260196/1788144

MBR DBR Partitioning System details