[rjwse@aol.com]

I am using calibre in Ubuntu. I can save backup via ctrl-alt-s to thumb drive in the computer's usb port, but the thumb drive in my router does not show up under ctrl-alt-s. (I realize this is not a just-calibre kind of question.) When I copy the epub file in Nautilus I can easily paste it into the router's thumb drive for backup. For some reason the router's thumb drive does not appear when using calibre's backup. Not a biggy. Just curious. Best regards, Pop