Subdomain to domain?

I installed a new Joomla site on a subdomain. When it’s populated with my content I want to show up on the main domain. I probably should have built this in a subdirectory, and then used remap subdirectory, but I didn’t.

Is redirecting the main subdomain to the domain the only way I can get the new site to show up where the old one was? And if I redirect to will this screw up SEO?

Try using Mirror. It’ll make your subdomain look like your main domain.