[ubuntu] grub not working - bootrepair error

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http://ubuntuforums.org – Hi all, I'm relatively inexperienced with ubuntu. In case the preamble isn't useful, my current problem is that I can only enter grub rescue when starting up my computer. Running bootrepair using a live copy of ubuntu 12.10 results in an error and this report: http://paste.ubuntu.com/1491845/ Any advice on what to do? Would re-installing ubuntu, setting the partition with a (partial) installation of Ubuntu on it already (sda7) as root and also setting sda7 as the device for bootloader installation work? Thanks in advance! Here is the aforementioned preamble (or is it now a postamb (Hardware)