alt Hacker NewsThat's very cool. Sadly running that exact command gets an incomplete file and error "error writing output file". It suggests adding iflag=fullblock (to dd). Running that makes a file of the correct size. But still gives "error writing output file". I suppose that occurs because dd breaks the pipe.
Weird, I could have sworn that used to work, maybe I wrote the notes down wrong.
Easiest alternative I guess is to pipe through head. It still grumbles, but it does work