Dear Ubuntu Forums,
I am an inexperienced Ubuntu user. I dual boot with Windows Vista Home Premium (32-bit) and Ubuntu 12.04 (64-bit as my computer is an AMD 64 bit machine). Everything always worked OK until I did the following...
I updated my Ubuntu 12.04 until there were not any other updates available and then decided to upgrade my system from 12.04 to 12.10. I was asked to restart the system for the upgrade to take effect. I restarted it and it looked like things were going well and then a screen popped up stating that (and this went so fast that the information I'm about to give you is the best I can describe) the /tmp was something and there was something about mounting and to press "S" to skip. I didn't press anything and then the screen disappeared and the computer continued to do its thing but it never booted into Ubuntu.
Luckily I use Macrium Reflect in Windows and I can always revert to Ubuntu 12.04, but I would like to upgrade to 12.10 if possible and then go on to 13.04.
Can anyone give me any help with this limited description? I'd sure appreciate your help.