Description of problem: modsec-equipped httpd installations will reject anaconda's http installation efforts, because it does not set a User-Agent: header in the http requests. This violates the "SHOULD" requirement in RFC2616 (section 14.43). Version-Release number of selected component (if applicable): Whatever's in FC5T3. How reproducible: Every time.
Particularly, the blank User-Agent part occurs during the initial base/stage2.img download. Later on, "urlgrabber/2.9.6" properly appears in the requests.
*** This bug has been marked as a duplicate of 98617 ***