The latest qemu tree e10990c3f0c39e92ab5f74004b89a24fcc36fa14 also has this issue.
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/706766 Title: [Qemu-kvm] qemu-img fail to create qcow image Status in QEMU: New Bug description: On qemu-kvm tree 6f32e3d09d990fd50008756fcb446b55e0c0af79, complier it. Then try to create a qcow image with a exist raw image, create fail. reproduce steps: 1) build qemu-kvm 2) ./qemu-img create -b ./ia32e_fc10.img -f qcow2 ./qcow.img 3) Fail to create qcow image, it show error "qemu-img: Could not open './qcow.img' "
