Hassio on NUC, where are the config files?

I installed hassio on a NUC with existing Ubuntu 16.

It works well but can’t find the config directory where is it, path?

Same place as for any other install - /config/

yep, but when I log in my NUC, I can’t find it … sorry newb here

Don’t log on locally, you’ll be in the wrong environment. You need to install the SSH add-on, and then SSH on (remembering to use the port you configured in the add-on, not the default of 22).

You can also install the Samba add-on to get access to the config files https://home-assistant.io/addons/samba/.

Thanks, ok I start to understand.

The add on has no user, is the user “root”?

EDIT: yes is root