How to seed data using EntityFramework Code first Migrations
The intro post shows how to seed datahttp://blogs.msdn.com/b/adonet/archive/2011/11/29/code-first-migrations-beta-1-no-magic-walkthrough.aspx
Seed data: Override the Seed method in this class to add seed data. - The Seed method will be called after migrating to the latest version. - You can use the DbContext.AddOrUpdate() helper extension method to avoid creating duplicate seed data. E.g.
myContext.AddOrUpdate(c => c.FullName, new Customer { FullName = "Andrew Peters", CustomerNumber = 123 },);