Tools to Recover Lost Data
We tend to loose data even if we follow the best practices. This article lists some important open source recovery tools which will help you recover your lost data and that too for free
Nidhi Sharma
Tuesday, March 16, 2010
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This shows Myrescue copying the files into /dev/sda2.

Recoverjpeg
This helps you recover JPEG pictures from a file system image. It scans the file system image and looks for JPEG structures at blocks starting from 512 bytes boundaries. This tool is used on Linux. To use this tool, you need to set the block size. A block size of 512 (default) will recover large files, but setting it to 1 will maximize its chance to find smaller images. For using the tool, just type 'recoverjpeg -b 1 /dev/hdb'. It at once starts recovering the files. However, by default the recovered filed are stored on the root directory. You can also use Recoverjpeg to recover lost data from peripheral devices like memory card . It works for ext3,and ext2 systems.

Myrescue
Myrescue tries to retrieve still readable data on your damaged hard disk. The utility tries to copy device block wise and keeps a table noting that if copying has been accomplished successfully. It works similar to dd_rescue, however it first retrieves data from undamaged area by increasing the step size and then returns to damaged area and tries to fix it. To use Myrescue, type 'myrescue -b 4096 -r 1 /dev/hdb1 /dev/hdb5'. Make sure you have enough space on your output file, otherwise the message 'No Space Left on the Device' will be shown on your screen. This tool works for ext3, ext2 systems.

the image lists the lost partitions that are to be recovered via testdisk
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