When booting with the Red Hat floppy, the parallel zip drive (via scsi4) is not detected, probably because support is not in the kernel. (I happen to know that you have to use scsi to access the parallel port zip). When I select, during installation at item "SCSI Configuration", "Do you have a SCSI adapter? Yes" and "Iomega PPA3 (parallel port zip" + "Autoprobe", I get the error: "I can't find the device anywhere on your system!". Virtual console 3 (Alt-F3) reveals: "* running /bin/insmod /bin/insmod /modules/ppa.o" "* insmod failed!" Note the double /bin/insmod, which imho is an erroneous call. However, when I try in Alt-F2 console: /bin/insmod /modules/ppa.o I get the error: "Cannot find archive member ppa.o: file does not exist in archive". Note that /modules is properly symlinked to the right directory on the, also properly mounted, cdrom.
*** This bug has been marked as a duplicate of 2501 ***