The DS and HTTP certs specified in CA-less server install with --dirsrv-cert-file and --http-cert-file must currently be issued by the same CA. This is an artificial limitation, as FreeIPA supports multiple CA certificates since 4.1.
--dirsrv-cert-file
--http-cert-file
Remove the limitation and allow different CAs for DS and HTTP certs.
Metadata Update from @jcholast: - Issue assigned to someone - Issue set to the milestone: FreeIPA 4.5 backlog