@@ -106,8 +106,8 @@ _img_info
echo
echo "=== Converting to streamOptimized from image with small cluster size==="
TEST_IMG="$TEST_IMG.qcow2" IMGFMT=qcow2 IMGOPTS="cluster_size=4096" _make_test_img 1G
-$QEMU_IO -c "write -P 0xa 0 512" "$TEST_IMG.qcow2" | _filter_qemu_io
-$QEMU_IO -c "write -P 0xb 10240 512" "$TEST_IMG.qcow2" | _filter_qemu_io
+$QEMU_IO -f qcow2 -c "write -P 0xa 0 512" "$TEST_IMG.qcow2" | _filter_qemu_io
+$QEMU_IO -f qcow2 -c "write -P 0xb 10240 512" "$TEST_IMG.qcow2" | _filter_qemu_io
$QEMU_IMG convert -f qcow2 -O vmdk -o subformat=streamOptimized "$TEST_IMG.qcow2" "$TEST_IMG" 2>&1
echo