how can I find the su - root password on my mac?
Awesome, this resolved my problem!
Follow the procedure that begins with Resetting the original administrator account password
The root user is disabled by default, so no password is set. What is it you need to do?
I need to install Apache.
Better yet, I need to enable it so I can set up a web client.
sudo apachectl start
Use your Admin password.
Nope, not allowing me to do that. I beleive I must have enabled the password for sudo.
Chances are you could have also done
sudo su -
which would now make you 'root' until you exit. You could do all your setup running as root.
Very few if anything actually needs the root password to use root privileges, and having a system where root cannot be directly logged into, is a safer system.
Retrieving data ...