"No bootable device"...
 

Hello .
After installing Fedora12 ,I get "No bootable device -- insert boot disk and press any key" ..
I checked the Boot Priority Order in BIOS , and Network Boot was [Disable] .
I tried to reinstall the boot loader from Ubuntu live CD but it failed (I didn't loss any file ).
I tried to install Fedora 11 again and I got the same message ..!

Every suggestion is regarded ..

Thanks ...

Could you have left an old formerly bootable usb flash drive in the back?

I must assume that your bios did show the correct drives and that when you installed the OS it did show the correct partitions.