I'm running OS X 10.11. My database server is installed and runs fine when I manually start it using mysql.server start;

So I created a LaunchDeamon script to start it on system boot. Problem is, it doesn't seem to work. It absolutely is a properly formatted launchd script though. root:wheel 644 and it's in /Library/LaunchDeamons and yet, nothing:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.l008com.mysql.mariadb</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/bin/mysqld_safe</string>
<string>--datadir=/usr/local/var/mysql</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
</dict>
</plist>

AND YET... and this is where it gets super annoying. If I run the following command manually in the terminal, the database starts right up!

sudo /usr/local/bin/mysqld_safe --datadir=/usr/local/var/mysql