Prerequisites for People Search in SharePoint Server 2010

People search in SharePoint Server 2010 requires the following:

1. Search service application configured.

2. A complete deployment of User Profile synchronization.

3. A Managed Metadata service application.

4. MySite Web application created and configured.

5. Search crawling for MySite configured.

6. A Search Center that uses the Enterprise Search Center template.

Without all of the above prerequisites, you cannot properly configure people search in SharePoint Server 2010.