Hold down the Option key right after you hear the startup chime, it will get to a screen where you can choose the startup disc.
Hey! That's a good tip. Didn't get a chance to try it. Since I ranted and rested up a while, I tried target mode. Nearly forgot about my backup iMac in the other room. It allowed me to choose to eject the CD, the partitions, or all. I chose CD. Nothing happened. But I exited Target Disk. rebooted mucked up iMac and held down that key on top row to eject disk. It ejected and I was back on my iMac Hard Drive. Phew!!
Please remember that startup disc hint for me will ya. I may need it some day. Thanks Reboot and Nuc.
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Edited by KateSorensen (02/04/1209:31 PM) Edit Reason: tried to make it readable.