We tried the sandbox, we downloaded the HDP from this websitehttps://hortonworks.com/tutorial/sandbox-deployment-and-install-guide/section/1/
and also downloaded virtualbox, we followed the step, then I run sandbox until now, it takes a super long time but still not successful. You can see the screenshots below.
Can you verify the following:
Also, going by the error on your screen re RO filesystem, you might want to ensure the Host I/O cache is enabled on the Storage Controller