Gentlemen, config/index.php has called interwiki.sql and produced table wiki_interwiki as expected. OK, but why won't e.g., [[commons:Bla]] become a blue interwiki link instead of a red local link? Yes I read http://www.mediawiki.org/wiki/Help:Interwiki_linking but feel that as I find the table already exists, I should not need to do anything more.