Trying to start a unicorn daemon as a non-root user but failing hard. Unicorn gives the the following error: directory for pid=/var/run/sinatra_test/sinatra_test.pid not writable So I made the following: sudo mkdir /var/run/sinatra_test sudo chown ruby:www-data /var/run/sinatra_test sudo chmod g+w /var/run/sinatra_test ls -ld /var/run/sinatra_test returns: drwxrwxr-x 2 ruby www-data 60 Oct 27 09:55 /var/run/sinatra_test What am I missing? Still getting Permission denied errors.