self.print_step("Preparing iso and disk image")
subprocess.check_call(["cp", "-f", cimg, iso_xz])
subprocess.check_call(["xz", "-dvf", iso_xz])
- subprocess.check_call(["qemu-img", "create", "-f", "qcow2",
- img_tmp, self.size])
+ self.exec_qemu_img("create", "-f", "qcow2", img_tmp, self.size)
self.print_step("Booting installer")
self.boot(img_tmp, extra_args = [