i've tried without, and it doesn't recognise the CD-ROM drive, so i can't actually install redhat! lol

with certain parameters i can get it to recognise *only* the CD-ROM drive, which means i have no hard drives to install onto, and with the parameters above, it recognises both, but it just won't boot properly after install.

As i think i said, it hangs during it's attempt to remount the root fs as read/write...