The installer appears to be only capable of installing from
/dev/hdc.  My /dev/hdc is a first generation dvdrom; it
doesn't read cds.  My /dev/hdd is a cdrom, and reads much
faster to boot.  Historically, on my system, to install
redhat linux I've had to unplug my dvdrom to install, which
is really a pain.  Users should get a choice of what device
to use, or at least be able to specify some option to the
installer.