[ubuntu] 12.04 wont boot

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http://ubuntuforums.org – I have been using 12.04 for a few months, used the windows installer and installed inside of windows, only have a 250 gig hard drive about half full,so I didnt want another partitional has been well until last night. Now it wont boot. as the splash screen loads I get a white box with lines of want look like zeroes, and in the box is the word OK. I click that a few times and I get a black log in screen, login and all I get is a prompt. Ran a boot repair and no improvement. I dont know if the paste bin link helps but here it is http://paste.ubuntu.com/5634010/ Thanks Dave (Hardware)