Problem installing OS 9.1

I received my "new to me" G3 imac (500 MHz) today and started trying to load system software on to it. The computer came with the HD wiped clean. I tried initially booting up from my OS 9.0 CD (purchased for my old machine) but it wouldn't boot up - just got a flashing folder/question mark and mac face thingy in the middle of the screen.

Next I tried OS 8.6 that came with my old 350MHz iMac - same deal.

So I then installed 10.2 - no problem (time consuming, but it worked).

I still can't install 9.0 though - I put the disk in, select "Install Mac OS9" and all I get is a message that says "Classic Startup found no system folder on the boot volume from which to start Classic". I still can't boot off the 9.0 CD - it just goes into OSX when I hold the "c" key down on startup or even if I change the startup disk in preferences to the CD.

What am I doing wrong - this is frustrating!!!

Rod 🙁

Further research...

Apparently the 500 MHz iMac is not compatible with OS 9.0 - I have to install OS 9.2.

I have OS 9.2 on my old Mac, having upgraded from 9.0 that was originally installed on it. Can I back up 9.2 from my old Mac and install it on my new Mac - or do I have to buy a 9.2 disk (which I would hate to do since I already paid for 9.0 and the upgrades to 9.2 are free!)???

Thanks