![]() ![]() This is so because the probability of having damaged areas at the same places on different input files is very low. Also you can interrupt the rescue at any time and resume it later at the same point.Īutomatic merging of backups: If you have two or more damaged copies of a file, cdrom, etc, and run ddrescue on all of them, one at a time, with the same output file, you will probably obtain a complete and error-free file. If you use the logfile feature of ddrescue, the data is rescued very efficiently (only the needed blocks are read). That is, you don't have to wait for an error, stop the program, read the log, run it in reverse mode, etc. The basic operation of ddrescue is fully automatic. So, every time you run it on the same output file, using a logfile, it tries to fill in the gaps. 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.ĭdrescue does not truncate the output file if not asked to.
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