Hi Pascal, thx for the hint. The -o was a typo. I used -b all the time. (I have a script to create the overlay images.) But t seems after my first tests I have not clean up my environment completly =:-(
Thanks for reset my mind. Now all engines up and running :-) Bernd Am 25.09.20 um 08:40 schrieb Pascal:
use -b and not -o : qemu-img create -f qcow2 -b base_img.qcow2 overlay1_img.qcow2 qemu-img create -f qcow2 -b base_img.qcow2 overlay2_img.qcow2
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