How do I install Ubuntu? My computer is saying "Can not find operating system on any devices"? I've already set my computer to boot from cd-rom firtst. I deleted all my partitions. Now what can I do to install Ubuntu? Do I need to create a specific partition? I burned it to a disc, but my computer isn't reading it right or maybe my computer cannot read ISO images. Is that possible? Give me any info that you know thank you.