[ubuntu] Linux installed fine, but not grub, and now live distributions won't boot either!

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http://ubuntuforums.org – Hello everyone, I'm a longtime linux user and evangelist, but installation (grub2 in particular) is not, shall we say, my forte. So if you have any advice about the following, give it to me slow... I'm trying to install ubuntu on my new computer. Important features of it include 128GB OCZ Vertex 4 SSD, and an Asus Z77 Sabertooth motherboard. Windows 7 was installed and is working perfectly, so all my hardware and connections and so forth seem to be working properly. I next tried to dual-boot with linux. I put 12.04 on a flash drive, did the whole repartitioning and install thing, (Hardware)