The HTTP request made during the HTTP install process is malformed. The request is: "GET /redhat/RedHat/base/stage2.img HTTP 1.0" it should be: "GET /redhat/RedHat/base/stage2.img HTTP/1.0" Apache is nice enough to respond anyway, but a Netscape server will return a 400 error.
This has been assigned to a developer for further review.
this was fixed in the errata bootdisks.