DBR简介,DBR区(DOS BOOT RECORD)即操作系统引导记录区的意思，通常占用分区的 第0 扇区共512 个字节(特殊情况也要占用其它保留扇区，我们先说第0 扇)。

磁盘上的数据按照其不同的特点和作用大致可分为5部分：MBR区、DBR区、FAT区、DIR区和DATA区-The data on the disk in accordance with their different features and functions can be broadly divided into five parts: MBR area, DBR area, FAT area, DIR area and DATA area

The data on the disk in accordance with their different features and functions can be broadly divided into five parts: MBR area, DBR area, FAT area, DIR area and DATA area