by jason everling.
You have some typo's in the paths if you followed, http://docs.moodle.org/27/en/Step-by-step_Installation_Guide_for_Ubuntu ,
You should be using these paths below,
Moodle Directory should be:
/var/www/html/moodle
Data Directory should be:
/var/moodledata
You shouldn't be able to change the "Moodle Directory" path within the installer, so if it does show that on your screen then you copied the moodle application into the /var/www/moodledata directory. It needs to be in /var/www/html/
JASON