try to eject the CD with a little wire. Put this wire on the little hole in from of your CDrom and puch it.
Then, reboot your mac puching down the left "shit key" . this will try to boot without extentions."same like without workbench startup drawer"
If nothing happends, insert your MACos CD, reboot your mac and puch down this 2 keys : "C and D". This combination will force the mac to boot from CDrom.
You speak about macos9 ! are you sure your mac can boot with this cd system? If your mac is a 68K model, it will not boot. You must have a PPC to boot macos9.
if your mac doesn't boot, maybe it is a little desapointed. you can reset his bios parameters doing this :
reboot it with the combination key : APPLE + ALT + P + R. You will normaly hear a sound, then a reboot, then another sound, thaen another reboot. Dont keep the combination key. The mac ahve to do 7 auto-reboots. After this try to boot normaly or from the CDrom.
Serge
Then, if it