Unable to recover Ubuntu after 12.04 to 12.10

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http://ubuntuforums.org – Hi Guys, I'm having a real challenge with Ubuntu after updrading from 12.04 to 12. 10 What's happening: 1. Screen loads the ubuntu loader (although it turns black quite a bit) and than just goes black and I am unable to do anything. Problems 1. USB live boot does not work (do not get the boot menu) I have checked on different computers and USB bootable does work. 2. I have no connecting to Wifi (and do not have an ethernet connection on my laptop). So I do not seem to be able to get new packages. 3. Grub> root (hd1, 0) says root command not know. I have tried about everything I c (Hardware)