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FreeBSD ddrescue
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Clone a source disk to a target disk of equal or greater size.
No need to wipe target disk (waste of time and disk life).

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# attach and identify the source and target disks one at a time.
camcontrol devlist
geom disk list

# first pass
ddrescue -f -n -v /dev/da0 /dev/da1 /tmp/rescue.log
# second pass
ddrescue -f -r3 -v /dev/da0 /dev/da1 /tmp/rescue.log