Test Disk - Filesystem Repair

Filesystem Repair

TestDisk can deal with some specific logical filesystem corruption:

  • File Allocation Table, FAT
    • FAT12 and FAT16
      • Find filesystem parameters to rewrite a valid boot sector
      • Use the two copies of the FAT to rewrite a coherent version
    • FAT32
      • Find filesystem parameters to rewrite a valid boot sector
      • Restore the boot sector using its backup
      • Use the two copies of the FAT to rewrite a coherent version
  • exFAT
    • Restore the boot sector using its backup
  • NTFS
    • Find filesystem parameters to rewrite a valid boot sector
    • Restore the boot sector using its backup
    • Restore the Master File Table (MFT) from its backup
  • Extended file systems, ext2, ext3 and ext4
    • Find backup superblock location to assist fsck
  • HFS+
    • Restore the boot sector using its backup

Read more about this topic:  Test Disk

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