Which iMac are you trying to install OS X onto? How much RAM does it have?
Figuring out how you got into this position is the first step. I guess that the iMac was working correctly,running OS 9.x.x, before you decided to install OS X, is that correct?
What did you do from that point? Is the OS X installer the real thing or is it on a Restore Disk from somewhere?
The full installer for OS X requires that you boot from the CD and allow the installer to do its thing. This "should" have left you with OS X and OS 9.x.x living on the same HD without a problem. If this was the way you went, did you Format the HD (with the installer) and then install OS X? If so, your HD is probably formatted in a way that OS 9 can no longer "see" it. Can you Boot the machine from your OS X CD's and then use the Disk Utility to check out what is happening. What I don't understand is, what happened to the OS 9 that was on the working HD?
Let us know
When I try to install os x onto my iMac it says basicaly that there is no hard drive to install it on. Before i tried installed the new os, i always had a hard drive(obviously) and i never had any problems with it. so what i did now was tried to install the old os 9 back into the computer, but my hard drive still isnt there. What do i do?