Red Hat / Fedora :: Reinstall Without Losing Home Partition?

I tried to install rawhide by enabling the rawhide repo and doing a yum update. Lets just say it didn't go so well. My system wont start the GUI when I start the computer. It just shows the Fedora boot animation and stays there. So anyway I need to reinstall Fedora 14. I wanted to reinstall Fedora without having to backup and restore all my data (my home directory). So I did some Googleing and found that if I had my home directory on a separate partition that I was set to go. All I had to do was format "/" and just tell it to use the "/home" partition I already had and not to format it and I that was it. So I went to try it myself and found that it was not as straight forward as it seemed. Well at least for me.

I clicked on "lv_root" assuming that was supposed to have "/" as its mount point. I clicked the edit button. I selected "/" as its mount point and told it to format it as ext4.Then I clicked on lv_home and clicked on the edit button. I made its mount point "/home" and clicked "ok".I clicked "Next" and I get this error "Bootable partitions cannot be on a logical volume". What do I need to do to fix this? I assume this has to do with the "lv_" at the beginning of the partition names.