Dear colleagues,
I made an image from my USB Stick with 4 GB, and the first times- I updated that nice imageing tool - and the first 2 times that tool told my that the USB stick is too small...
Then I inserted an 8 GB stick, restored it- without any error messages, and then tried to restore it on the USB stick like before, and it worked...
I could not find any hint, by the way, to decrease the image size per command line, the volume size is 4001 ... KB, the device size is 4009 ... KB.
Thanks for your help,
Thilo