Adds mbasd=1 (MacBook Aire Super Drive) to /Library/Preferences/SystemConfiguration/com.apple.Boot.plist as a kernal flag:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Kernel Flags</key>
<string>mbasd=1</string>
</dict>
</plist>
Or, use the following command in Termimal:
sudo nvram boot-args="mbasd=1"
Note that nvram may be reset for some core system update (you can also manually reset nvram), so I prefer the .plist method.