iMac G5 (May 2005) with no OS installed; have original discs.
An elderly relative somehow wiped her iMac G5 20" completely. She has the original OS discs that came with the computer. I want to reinstall the OS for her from the original discs but can't figure out how to do this. When I turn the machine on it beeps a few times, screen remains black (of course, with no OS). The DVD install disc (1 of 2) doesn't stay in the slot. I just have no idea how to reinstall. What am I missing and what is the procedure in a situation like this?