Restore Failure: An error (32) occurred while copying. (Broken pipe)

The problem

If you are Cloning an image using Thunderbolt and Disk Utility (or even using Firewire instead of Thunderbolt), you may come across this error message:

brokenpipediskutility
I've actually never experienced that with Thunderbolt (not saying it can't happen), but I've had it happen twice using Firewire. At first I thought it was the cable ("broken pipe" would indicate to me a patchy physical connection of some kind), so I switched out the cable, and that didn't help. In another situation, I knew the cable was good, because I'd used it several times.

A possible solution

Try switching the direction. So if Mac A is in target disk mode and Mac B is in recovery mode, make it so Mac A is in recovery mode and Mac B is in target disk mode.

Caveat

I don't know that this is the official workaround/fix or that this will always work, but I've gotten this error twice, and this workaround/fix worked in both cases.

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