Thanks Neville,
Yes, the steps described above seem to do just that. What I actually wanted to achieve is creating a virtual “disk” … a device that´s listed in the form of /dev/sdg
…
That would be the goal. Right.
Ah, I see. I´ll have to investigate further. Thanks for helping me.
I think you have Gnome-disk-image-mounter in mind.
I´ll take a look at it.
Thanks so much and many greetings
Rosika