I downloaded the ubuntu-12.10-desktop-amd64.iso.
Then I created a bootable USB stick using the guide from [here]. I booted the USB stick and after the Ubuntu logo and some circles loaded beneath it, nothing happened; my laptop started making some weird noise.
So I booted the USB again, but this time with "acpi=off, noapic and nolapic" enabled. This time the booting process went past the circle loading thingy, but halted again and the weird noise started. Check the screenshot to see the lines of code rendered.
Why isn't the OS booting properly?