Instead of linking, i tried editing the daemon.json file with:
If i try: " docker info | grep 'Docker Root Dir' " the output is "Docker Root Dir: /srv/dev-disk-by-label-HC/DockerBasePath/docker "
So the path is ok, so why i do not see anything into OMV Docker?
Anyway i think that the link is backwards, it should be ln -s /var/lib/docker /new/path and not ln -s /new/path /var/lib/docker. Right?