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Data recovery of deleted files from the FAT filesystem

Jul 09, 2010, 17:06 (0 Talkback[s])

[ Thanks to linuxconfig for this link. ]

"1. Introduction

"Although FAT32 or FAT16 are very old file systems, which reflects on their poor performance in comparison with other file system alternatives they are still widely used by many electronic devices. Usually, these devices include USB stick's, digital cameras , camcorders and etc. Chances are that you own and store personal data on a device with FAT flesystem is very high as is a likelihood of an accidental deletion of your important data. In this article we will use testdisk utility to undelete files from FAT file system.

"OOPS.. I have accidentally removed a video file from my camcorder ! The first thing before we start panic is to unmount USB device and create a low level backup of the device partition with a dd command.

"If from any reason you cannot unmount your device, remount it with read-only permissions:

# mount -o remount,ro /dev/sdX

"Any data written or file manipulation after accidental file removal will weaken our chances for deleted file recovery. On the other hand creation of a low level backup with dd command gives us an opportunity for unlimited recovery attempts since we are always able to put the entire partition back bit by bit exactly as it was right after accidental file deletion."

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