dealing with a slightly flaky USB drive; unkillable bash process

[Adam Funk]

On 2015-09-23, Petter Adsen wrote:

> And I just want to add this: Read and parse your command line *several
> times* to make sure you have device nodes in the correct order when
> doing imaging of whole partitions/drives, and verify the order in the
> man/info page. It's just too easy to image the new, empty drive on top
> of the partition you are trying to rescue.
>
> Not meant to be condescending or anything, just a friendly warning.
> These types of commands are potentially among the most damaging ones
> you can run if you get it wrong.

No offense taken!  That is excellent advice for things like this, dd,
parted, luksformat, etc.