External Drive Doesn't Show Up When Booting
I have an iMac (intel) 10.5.8, and I want to reset my Macintosh HD and I found I could do it using disk utility when booting from another source. Unfortunatly I don't have the installation disc (I bought the mac 2nd hand) so I tried backing up my computer to an wxternal hard drive and booting it from that. so I turned on the computer and held Option until the Macintosh HD showed up. I was told my other external drive would too, but it doesn't, so i can only boot it from the Macintosh HD. IF anyone can help that would be great! or come up with other options to reset my HARD DRIVE!! Thank you.
iMac, Mac OS X (10.5.8)