15 lines
688 B
Markdown
15 lines
688 B
Markdown
# dd_rescue
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GNU ddrescue is a data recovery tool.
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It copies data from one file or block device (hard disc, cdrom, etc) to another, trying hard to rescue data in case of read errors.
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Ddrescue does not truncate the output file if not asked to.
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So, every time you run it on the same output file, it tries to fill in the gaps.
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The basic operation of ddrescue is fully automatic.
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That is, you don't have to wait for an error, stop the program, read the log, run it in reverse mode, etc.
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If you use the logfile feature of ddrescue, the data is rescued very efficiently (only the needed blocks are read).
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Also you can interrupt the rescue at any time and resume it later at the same point.
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