title: New Django app initial DB migrations of an existing database
body: <p>I have an existing database filled with a bunch of data. I want to migrate to Django so I went ahead and created the necessary models with <code>python manage.py inspectdb</code>. I haven't changed anything besides removed the <code>managed = False</code> since I want Django to manage the tables (mistake perhaps for initial migration?).</p>
  
  <p>So now that the models are ready, how can I generate the first migration file so that I can start changing the fields to generate additional migrations (renaming a field here and there). I understand <code>python manage.py migrate</code> will handle the creation of Django-specific models but does not actually create any migration files? Some sources indicate the first migration file should be run with <code>--fake</code> so it's not applied. Will the next migration files remember to run the first one as fake and only apply the next ones?</p>