Can you explain what you’ve done so far? Have you installed any Ghost instances yet? What hosting are you using (i.e Digital Ocean 1-click, or just a regular VPS)?
I am having this exact issue. I have a 1-click DigitalOcean droplet with Ghost installed. I tried to run
ghost update
but it wouldn’t work because I was logged in as root. Found out I needed a new user to run commands, so I created new user, but it still didn’t work because I needed to make user the owner of the directory where ghost is installed. So I followed the guide linked above, but hit the same issue with
mv /root/.ghost/config /home/<user>/.ghost/config
giving me the error
mv: cannot stat ‘/root/.ghost/config’: No such file or directory
The error you’re seeing sounds like you’re either running as root, or you ran with sudo, which effectively runs as root. Can you ensure you’re not running as root and try again?