File: [engine/reference/commandline/dockerd.md](https://docs.docker.com/engine/reference/commandline/dockerd/) The `-g` for `dockerd` is used in examples but not documented correctly, it is mentioned under [miscellaneous-options](https://docs.docker.com/engine/reference/commandline/dockerd/#miscellaneous-options) Edit: apparently the -g is [deprecated](https://github.com/moby/moby/blob/b64b9811c3adb69641e2356fd12e2077d1f34ae1/cmd/dockerd/daemon.go#L444), in favor of `--data-root`