On Fri, 19 Dec 2014 05:45:33 -0300 Renaud (Ron) OLGIATI <renaud@olgiati-in-paraguay.org> wrote: > I plug in a USB pen drive, and launch dd to copy an iso image. > > # dd bs=4M if=debian-live-7.6.0-amd64-rescue.iso of=/dev/sdi && sync > dd: opening `/dev/sdi': Read-only file system > > Is there a way to force it to mount read-write ? Try mount -o remount,rw /dev/sdi Petter