Postgresql

Not sure if the following are relevant?

https://unix.stackexchange.com/questions/433370/device-or-resource-busy
https://unix.stackexchange.com/questions/11238/how-to-get-over-device-or-resource-busy

Since you haven’t done any customizing,
It’s very unlikely anything at that location should affect future actions.
I’d go ahead and re-install with little worry (If it causes a problem, you’ll know immediately when you set up and run your first database).

TSU

Noted and thanks so much for your time and advice.