I recently built a custom 10.9.2 NetBoot image with Server app 3.0.3 and enabled root user/auto login. I am able to successfully NetBoot the .nbi build but am prompted with an OSX log on screen asking for credentials. This doesn't make sense to me because iIn the NetBoot.dmg created on the server, root was enabled and auto login was enabled for the only local account. That local account or root credentials will not authenticate at startup. I am essentially locked out of the image after NetBooting. Help!
