Yes, I have read your advices about cloning a HDD, but actually I am not going to make a COPY of the partition. I want to have an IMAGE, i.e. a single file with the partition (or volume) contents with the ability to recreate a partition from this image file.

That's why I am not interested in the command:
Code:
dd if=/dev/hda of=/dev/hdb
but rather something like
Code:
dd if=/dev/hda of=/dev/hdb/hda_image.bck
Then I wonder, what happens, if /dev/hdb is an NTFS partition. Probably I need RW access. The same about RESTORING ...
Code:
dd if=/dev/hdb\hda_iimage.bck of=/dev/hda
If I have understood you correctly, it should not matter, if /dev/hda is an NTFS partition, of not. Knoppix (without the ability of writing to NTFS) should handle this - right?

Please comment