cat ~/.ssh/id_rsa.pubon your mac?
cat /home/user/.ssh/authorized_keyswhat does it output?
tail /var/log/auth.logas well.
I have same problem. SSH key is not working. When I try ssh root@.... it keeps asking me for a root password.
I do not wont to change anything on server setup in order to use this (ssh keys).
If there is a option during setup that says use this key then why is it not working?