how do I create root user on Mac OSX Lion server. I somehow deleted mine and now my documents, download folders won't work/missing, as well as my systems preferences won't open, it just crashes
OS X, while does have a root user, doesn't have it active. Did you remove administrative privileges from your user account? None of your documents or downloads are owned by root, and deleting the root user wouldn't affect them at all (you would have trouble booting, I think). It sounds like you accidentally tried to delete your root folder (
I would advise trying to create a new user account from Terminal (See here for instructions on how to do that), and then see if everything is working fine from there. If they are, then you might want to start looking into some HFS+ file recovery software-- those documents/downloads that are missing, were probably deleted.
Once you're done recovering files, you'll probably want to easily access the old files under the old useraccount. Run