That should have been it given the state of your install. If you can't see the Linux box from your OSX machine you could use the miracle of avahi ( which is the Linux implementation of Apple's Bonjour ):
 Create a file:
 Add the following to the file:
gksu gedit /etc/avahi/services/samba.service
 Then save the file.
<?xml version="1.0" standalone='no'?>
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<name replace-wildcards="yes">%h SMB</name> ## Display Name
** Make sure avahi is running:
** And if you have a firewall in the way on Lubuntu disable it or at least make sure ports 445 and 5353 are open.
sudo service avahi-daemon status
You should see it in OSX's Finder as "server210 SMB"