On 8/30/07, B G <briang113 at pacbell.net> wrote: > > The question mark folder means no valid OS found on a bootable disk. But why are both my previously bootable disks (and the OS CD) listed when I booth with the Option key held down then? > When you boot from the CD/DVD are you restarting with the C key held > down and the CD/DVD inserted? Yes, and I've also tried selecting it from the menu I get when I boot with Option held down. The OS CD should be good, but I tried another, older one with the same result. Also tried a 9.x CD - same thing happens. I hadn't used this machine for a couple of weeks, so it has been powered down. As far as I remember, there were no problems when I used it last. I just tried to power it on, walked away for a minute to do something while it booted, and when I got back it was sitting in the open firmware prompt. Yeah, I know - "I haven't changed anything". I've been sort of suspicious of my OS X boot disk for a while since I got a couple of error message a month or so back, but I only got a couple of them and then they stopped, and it's been working fine until now. But OS 9 is on another disk that also won't boot, and neither will CD's. Can I boot off a USB drive? I can try connecting one and try a CD/DVD in that, but I can't really see why that should make any difference. I guess I could also try downloading a Linux ISO image of some sort and try that, but I'm quite certain my boot CD's should be good. This is no fun at all - I have no idea where to start looking. Anyone? Petter -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/g4/attachments/20070830/32602478/attachment.html