_install_select_profile(&$install_state) Determines the installation profile to use in the installer.
Run the task on each installation request that reaches it. This is primarily used by the Drupal installer for bootstrap-related tasks.
install_find_translations() Finds all .po files that are useful to the installer. Return
install_check_localization_server($uri) Checks if the localization server can be contacted.
install_verify_database_settings($site_path) Verifies that settings.php specifies a valid database connection
install_install_profile(&$install_state) Installs the install profile. Parameters
install_load_profile(&$install_state) Loads information about the chosen profile during installation.
install_database_errors($database, $settings_file) Checks a database connection and returns any errors.
install_display_output($output, $install_state) Displays themed installer output and ends the page request
Run the task on each installation request until the database is set up. This is the default method for running tasks and should be used for
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