I just came across this same issue. I am running the HDP 2.5 sandbox using vmware Fusion. Usually I could just ssh into the vm and run the ambari-admin-password-reset command, but with this latest release of the sandbox - I had to find the docker container running ambari, log into the docker container, and then I was able to reset the ambari password. This definitely changed from the previous releases of the sandbox. after ssh root@sandbox (again, vmware Fusion syntax vs virtual box syntax of 127.0.0.1) # ps -ef | grep container-ip I'm sure there is a better way, but from this listing I saw the container ip address was 172.17.0.2 ssh root@172.17.0.2 From here, I had to reset the root password on the container (as typical) and then I was able to run # ambari-admin-password-reset ... View more