Comment by groby_b

> Block level copies of boot volumes is high risk, because they are almost exclusively mounted in RW mode via label or guid

Oh, 100% agreed. The article was about "under duress", and that's about the only time where I think this is a useful imaging approach :) (I.e. I'd mostly use this in the "I don't know if this'll ever start up again" case)

You shouldn't land in this situation in the first place. Ideally. But, as the saying goes, "in theory, theory and practice are the same - in practice, they are not" ;)

Stuff goes wrong. This is a good tool in the toolkit for when it's already gone seriously wrong.