Comment 16 for bug 561958

S. Rey, I changed the bug title to be more general, since it seems to be the same root cause. It has always worked with my Sony PRS-505, and with my colleague's Kindle, so I still wonder what's different on your system.

Again, the upstream calibre-mount-helper is absolutely inadequate (and also unnecessary), and there is no way you can convince me to ship it in the official package. What I could do is to ship a small shell script with the same name instead which just calls udisks --mount, etc., or simply exit 0 (since the device is already automounted).

Can you please try this in a Terminal:

  echo -e '#!/bin/sh\nexit 0' | sudo tee /usr/bin/calibre-mount-helper
  sudo chmod 755 /usr/bin/calibre-mount-helper

This will create a dummy calibre-mount-helper which does nothing and avoid the error message. Does it work then?