I need to add an user called "admin". When I type:
# adduser admin
adduser: The group 'admin' already exists.
So, I guess, by default,
adduser is trying to create an "admin" group that already exist at the same time as creating the "admin" user. Reading adduser man page I've seen
-N option to avoid goup creation. I tried this:
adduser -N admin
With the same result. How can I create an "admin" user?