[ubuntu] Can't Boot Anything, Grub Problems

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http://ubuntuforums.org – Could someone please help? I used to have Ubuntu 10.xx (don't remember exact version) as my main operating system, and then later, I decided to install Windows 8 CP to try it out. I didn't get rid of Ubuntu, it's still on a partition. The problem is, after installing Windows 8 CP, it set itself up so it'd install as my main operating system and not boot into my grub anymore. Later, I wanted to boot back into Ubuntu, so I thought if I just used my LiveCD to update my grub, it would fix it. But now all it does it take me to a grub screen that is a command-line interface and tells me the g (Hardware)