Description of problem: virt-resize --output-format raw sets the *input* format to raw. This is because the code for the --output-format flag is accidentally setting the format variable (not output_format): https://github.com/libguestfs/libguestfs/blob/a93d4a9dc1aea6940886c85d4b09f21cbfc80969/resize/resize.ml#L101 (Bug found by Grant Williamson) Version-Release number of selected component (if applicable): 1.17.8 How reproducible: 100% Steps to Reproduce: http://pastebin.com/VpsNjYEa
Fix pushed upstream here: https://github.com/libguestfs/libguestfs/commit/88ba4da4d6c07762fc95c96ea67019f0ebf4677c