Clone volumes without the use of an intermediate disk image

asr

  • Restore (copy) a disk image onto a volume.
    The command name stands for Apple Software Restore.
    More information: <https://www.unix.com/man-page/osx/8/asr/>.
  • Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

sudo asr restore --source {{path/to/volume}} --target {{path/to/cloned_volume}}

click the source code to copy