Does LVM option delete existing operating systems?

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http://askubuntu.com – I accidentally clicked this option when installing 12.10. Now, I am not seeing my other operating systems show up. I tried fgrep menuentry /boot/grub/grub/.cfg and only see Ubuntu. When I checked my partitions using fdsik, I saw that there are three partitions still. If the operating systems are still there, how would I be able to access them? (HowTos)