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I probably screwed up my Ubuntu installation, want to know if it's possible to repair it without a re installation.

What happened:

I was trying to install virtualbox 4.2 on my Ubuntu machine (to run a windows VM to root my phone, that's a whole nother issue). Only issue is my computer probably won't be able to handle a Virtual Machine, but I wanted to see if it could (it's outdated).
It almost completes installation, then my PC freezes and reboots.

This is when I get the error, when attempting to boot up Ubuntu:

Error mounting /boot. It only gives me the option to run a shell command or skip, and when skipping boots into my 'desktop' with no graphic drivers/unity running.

I attempted to run boot-repair from the Live CD (as in 'try ubuntu' and running it from that machine), but am unable to chroot.

Any suggestions? I don't mind trying anything because I can just reinstall from scratch, just annoying having to download the drivers and things I had working.

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Alright. Skip, and then when it boots into whatever, Ctrl+Alt+F1 will throw you into a terminal. cd / then, ls -lha | curl -F 'sprunge=<-' http://sprunge.us will give you a link (case specific with numbers). Paste it here. –  haneefmubarak Aug 5 '13 at 1:53
After that, cd /dev then the same ls -lha | curl -F 'sprunge=<-' http://sprunge.us, and again, give us that link too. –  haneefmubarak Aug 5 '13 at 1:56
I was not able to open lha as it doesn't exist. I am currently running the Ubuntu repair tool and I'll see if that fixes anything –  Eric Aug 5 '13 at 3:00
Not ls lha, ls -lha. Notice the dash. Every symbol is important here. –  haneefmubarak Aug 5 '13 at 8:15
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