1. use install/automated-install.html for manual installation to check post params 2. NO need to copy.htaccess. We have managed it in install.php with 'htaccess' => 'skip'. 3. PHP REQUIREMENT LINK: https://b2evolution.net/man/system-requirements 4. We have removed sample data content option since 7.1.4 version because user can install demo contents from admin panel.