I can't install Ubuntu 12.10 from USB drive. I tried LiLi, UNetBootin, Universal usb installer and others for create USB. It boots and I can select "Try Ubuntu without installing" and "Install Ubuntu on hard disk". But when I select any option, Ubuntu screen with 5 dots shows, it fills all 5 dots with red color and after it shows console with "Authentication failure" maybe 5 times in a row. And it hangs there. Can you help me how can I get it working please?
My notebook is Lenovo G580. I tried disable/enable UEFI boot but it doesn't help. I don't have DVD drive so I can't install it from CD/DVD.