You did not include config_si.php in the document root

📦 Install & Upgrade Help
1

Hi all,

I believe I have followed every step in the guide:

https://suitecrm.com/wiki/index.php/Installation

But I get:

“You did not include config_si.php in the document root, or you did not define $sugar_config_si in config.php” when I try to run install.php.

I have downloaded the latest stable source code (7.6.6)

I believe I have applied the correct permissions:

chown -R www-data:www-data /var/www/html/suitecrm
chmod -R 755 /var/www/html/suitecrm
chmod -R 775 /var/www/html/suitecrm/{cache,custom,modules,themes,data,upload,config_override.php}

Strange thing is, the install page renders correctly on Chromium but it is unresponsive when I click “I accept”

I am using Debian jessie.

Am I missing something?