DBR data structure and function of FAT32 file system

DBR is the boot sector of the FAT32 file system and is the first sector of the file system. The DBR sector records many of the key parameters of the FAT32 file system, including the number of starting sectors of the FAT table, the size of the Fat table, the number of fat tables, the total number of sectors of the file system, the number of sectors per cluster, the number of bytes per sector, and other parameter information.

In the data recovery, the structure of the DBR is very important, often see the flash drive or memory card "disk is not formatted, need to format" to use, the first thing you should think of this phenomenon is the structure of the file system is damaged, causing the operating system does not correctly identify the file system. It is most likely that DBR is damaged, so learning the data structure of DBR is very necessary and basic. Let's look at the DBR data structure of the FAT32 file system.

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It is important to note that DBR has a DBR backup in Sector 6th, sometimes the DBR of sector No. 0 is damaged and the backup DBR in Sector 6th is not damaged, so we can repair the data in the DBR fast recovery by covering the location of the No. 0 sector with the backup DBR of Sector 6th.

The representation of the red font in the figure is very important, so be sure to remember

Learn about the Green font

It doesn't matter if you can't remember the black font.

This article is from the "Winhex Data Recovery Tutorial" blog, so be sure to keep this source http://shujvhuifu.blog.51cto.com/10412640/1917323

DBR data structure and function of FAT32 file system