ddrescue

Data recovery tool that reads data from damaged block devices.

More information.

• Take an image of a device, creating a log file:

sudo ddrescue {/dev/sdb} {path/to/image.dd} {path/to/log.txt}

• Clone Disk A to Disk B, creating a log file:

sudo ddrescue --force --no-scrape {/dev/sdX} {/dev/sdY} {path/to/log.txt}

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