DBR recovery

DBR recovery
MBR is for the whole hard disk, while DBR is for individual partition.
The first sector of each MBR is DBR. Just as MBR, DBR contains some information that the boot
operation system need. If DBR is corrupted, you can neither visit the partition nor start up the
operation system of the partition.
If boot sector is damaged, the possible symptoms are:
1. Invalid media type reading drive
2. Abort Retry Fail?
3. File system is displayed as “RAW”
4. Windows may ask if you want to format the drive
5. File names contain “weird” characters
6.”Sector not found” messages
Etc.
Moreover, for partitions of NTFS, the functions of DBR are not all the same as that of FAT
partition. For FAT partition, DBR locates FDT and FAT (correspondingly as well as DATA), but
not verifying the correctness and reasonableness of FDT and FAT. For partition of NTFS, we need
more units to load the file system, which is more complex than FAT.
What if when the DBR is destroyed? Usually, there are methods as following: