The starting point is to read through and follow the notes outlined on the ejabberd site regarding adding database schema. The purpose of this documentation is to clarify where the files were located for me.
The schema files can be found in ejabberd priv directory. To find the priv directory, use the find command
find / -name priv -type d
Initially, the directory I found based on the guidelines
However, the only file in this directory was lite.sql. Do not use this file.
I couldn't the mysql.sql file. So I did a search command specifically for mysql.sql
sudo find / -name "mysql.sql"
Conducting the search this way showed where the files were, interestingly it didn't quite match the criteria outlined earlier PREFIX/lib/...
The directory that had the correct mysql.sql file was
Otherwise, you can by pass this and download the schema
Install the schema
mysql -h localhost/IP_Address -D ejabberd -u ejabberd -p < mysql.sql
Edit the config file /usr/local/etc/ejabberd/ejabberd.yml to make necessary changes
Change the authentication method
Use mysql for all the modules:
Specify the details of the mysql database
sql_type: mysql sql_server: "IP address or localhost" sql_database: "ejabberd" sql_username: "ejabberd" sql_password: "password" ## If you want to specify the port: sql_port: 3306