So I've been working on installing OS X onto my mini 9. I had everything almost completely done, but in my greed I tried upgrading from 10.5.6 to 10.5.8. It screwed everything up. The OS doesn't load on it's own, and when I go to boot from a USB or external DVD rom drive, it just ignores the drives.
All I want to do is to wipe my hard drive clean and start again. Everything I've found online wants me to use some boot dvd or boot usb to wipe the hard drive.
Is there any way to just erase the hard drive from the command prompt or the bios or something. I just want to be able to start from fresh, but I cant seem to locate find a "hard drive reset" button or command anywhere.
Am I SOL, or is there a secret magical spell that I am missing? Please and thank you!