Installation profiles define additional steps that run after the base installation provided by Drupal core when Drupal is first installed. WHAT TO PLACE IN THIS DIRECTORY? -------------------------------- Place downloaded and custom installation profiles in this directory. Installation profiles are generally provided as part of a Drupal distribution. They only impact the installation of your site. They do not have any effect on an already running site. DOWNLOAD ADDITIONAL DISTRIBUTIONS --------------------------------- Contributed distributions from the Drupal community may be downloaded at https://www.drupal.org/project/project_distribution. MULTISITE CONFIGURATION ----------------------- In multisite configurations, installation profiles found in this directory are available to all sites during their initial site installation. MORE INFORMATION ---------------- Refer to the "Installation profiles" section of the README.txt in the Drupal root directory for further information on extending Drupal with custom profiles.