Upgrading from DSM 6 → DSM 7 and trying to “wing it” doesn’t work.
DSM 7 is too radical a change to just guess
Did you review this?
First post tells you all the changes
Bottom (post 6) Tells you how to get your DSM 6 server to DSM 7 ( how to work with the new installer to move all the data around – with the automation – so nothing is lost
If you have questions (which I’m sure you will), don’t hesitate to ask.