So I feel a bit stupid for getting myself in this situation...
So I installed Ubuntu 12.10 on my family's computer shortly after it was released and decided to do an LVM install, thinking it would still ask me about partitioning the LVM. It didn't, but it worked so I didn't mind too much. Fast forward to a few days ago, I decide to try Mint and it's running pretty fast from the flashdrive, so I decide I'll install it along side Ubuntu. So I resize the the the partitions in the LVM and make a new one in there for mint to install to and I let the installer run.
After it's done, GRUB shows up and I try booting to Mint. But it just hangs and says nothing. Luckily the option for Ubuntu still works so the computer is still usable, but the Mint option doesn't.
So can anyone here help me get mint working? If so, what extra information do you need?