How to disable search in the Google Chrome address bar? [duplicate]
You can't disable the search feature of the Omnibox.
You can disable instant search by clicking the wrench > options > basic and unchecking "enable instant."
A possible work around is to create a custom search engine for chrome. Right click in the Omnibox (search bar) and choose Edit search engines. You can create a blank search engine that will always fail by putting "no" "null" and "http://%s" in the Name, Keyword, and URL fields respectively.
If you're trying to point this to a local host, you could potentially use the URL field for this, though I have not tried this, and cannot confirm.