Originally Posted By: Virtual1
I wouldn't use that noerr conv if you are looking for io errors. Maybe it's getting errors and that slows it down or locks it, and you're not seeing it because of this?

If we don't use conv=noerror, the most "errors" we can ever find is one.

If we do use conv=noerror, it reports them (with exquisite detail) in realtime, and proceeds:

Originally Posted By: man dd
conv=noerror

Do not stop processing on an input error. When an input error occurs, a diagnostic message followed by the current input and output block counts will be written to the standard error output in the same format as the standard completion message.

As to whether a single error should mean erase, remap and pray — or, just throw the disk away... it's hard to say. But I would tend to think that scanning a little further or a little deeper is harmless, and potentially more informative (than stopping immediately).

Last edited by Hal Itosis; 01/05/10 11:45 PM.