I have one of the original Mac Mini - a PowerPC one - that after the last software update will no boot - it gets to the grey screen and hangs their forever with the 'loading' icon rotating.
I've tried booting to single user mode, but the command line does not respond to keyboard input once it gets to the prompt (am I missing something?).
I've tried inserting the boot DVD, which is defiantly the correct one (I only have one Mini and it's labelled Mac Mini) but when I do Mac attempts to read the DVD then ejects it. I've tried this when booting with the 'C' key down and without. It's also the same if I boot with the option key down and insert when at the blue screen - it gets ejected. It's only this disk that behaves like this - other disks do not get ejected. Furthermore I can read this disk quite happily in my MacBook so I that it itself is fine.
I've booted with the options to reset PRAM and NVRAM - which appear to have worked. I just can't get any further.
The Mac is not critical and I don't even mind too much if I don't recover what's on it (prefered but not a show stopper), but at the moment I can't seem to do anything with it
What should I do next?