iMac 5,1 No bootable device, blank screen upon boot. None of the key combos I've tried work, tried before and after the grey screen comes up.

[Genaker]

So, I installed 10.9 on my iMac 5,1 and it was working fine. Tried Bootcamp, and now I think it's trying to load into windows which hasn't been installed yet. Superdrive is cooked, won't read DVDs or CDs, and the 5,1 won't boot from USB. (I've tried basically every key combo I could think of, guys.)

 

[Genaker]

Here are the screens it gives.

 

[Genaker]

apparently I was t holding option long enough.. (bruh) Anyway, it's fixed now!