重建分区表与FAT32_DBR研究与实现

Research and Implementation of Rebuilding Partition Table and FAT32_DBR

通过对硬盘MBR分区表结构、FAT32文件系统整体布局以及FAT32_DBR结构的分析,以实验的方式对硬盘MBR分区表、FAT32_DBR以及FAT1同时被破坏后进行修复研究。提出了恢复硬盘数据的两种方法:修复硬盘FAT32_DBR和FAT1以及修复硬盘MBR分区表、FAT32_DBR和FAT1。实验结果表明:当硬盘MBR分区表、FAT32_DBR和FAT1同时被破坏后,可以采用这两种方法中的一种来恢复FAT32文件系统中的全部数据,解决了由于硬盘MBR分区表、FAT32_DBR和FAT1同时被破坏后数据难以恢复的难题。方法一只能恢复只有一个MBR分区表中的数据,而方法二可以恢复多个MBR分区表中的数据。

To analyze and research the MBR partition table, the whole layout of FAT32 File System and DBR in the FAT32 File System, the MBR partition table,FAT32_DBR and FAT1 are repaired when they are damaged at one time by the mode of experiment. The two methods are put forward for recovering the data,the first one is to repair FAT32_DBR and FAT1 in hard disk,the second is to repair MBR partition table, FAT32_DBR and FAT1 in hard disk. The results of experiment indicate that one of two methods could be used to recover all data in FAT32 File System. Solved the problem that the data could be recovered difficultly as MBR partition table, FAT32_DBR and FAT1 damaged at one time. The practice is proved that the first method is only used to recover the all data in a partition table and the second one is to used to recover the all data in many partitions.