I have carefullly followed the instructions in man mount and in the Debian Reference manual, for example mount -o loop -t ext3 debxo-awesome.ext3.img /media/sdloop or mount dexo-awesome.ext3.img /media/sdloop -t ext3 -o loop In both cases the mount command exits with a message: Can't find ext3 filesystem on dev loop0. What must I do to be able to mount this image file? Tom