|Had same problem, just figured out what it was. |
Bios was set to boot 'removable devices' before the cd or hdd. My keyboard has a small usb memory device in it, and this boot sequence was causing the machine to try and boot from the keyboard memory.. which had nothing resembling an operating system on it.
Some popular, aforementioned advice:
- unplug all usb devices
- set bios to boot hard drive FIRST, -or-
- enter a boot menu and select the hdd (if your bios has this feature)
- take all memory cards out of SD card slots if you have a laptop
Not everything looks like a 'removable device'.