I'm trying to do a clean install of only ubuntu then be able to run windows 7 inside virutal box. I created a LiveCD of 12.10 and performed a regular install of ubuntu. However, when i try to boot ubuntu, i either get a black screen, a blank purple screen, a black screen with a blinking cursor, or a glitchy looking screen. The glitchy looking screen happens after i go into grub and do the nomodeset "fix."
I have also tried installing 12.04 but with no success.
I have searched and looked around for any possible solutions to my problem. All of which have failed. I have done a boot-repair through live and it produced this link
My desktop specs:
Gigabyte MB running in UEFI DualBIOS
AMD Radeon HD 6850 graphics card
any help would be appreciated. Sorry if this was already mentioned. If so, please direct me to a solution to my issue. thanks