I have Ubuntu and Lubuntu, I want to uninstall Lubuntu

view full story

http://askubuntu.com – Last night I installed Lubuntu 11.10 on my desktop PC, before that I only had Ubuntu 11.10, but now I have a "Dual-Boot" PC, with GRUB. The problem, I want to uninstall Lubuntu because it doesn't liked to me :( I tried to do that on Lubuntu's Live-CD GParted, but it has partitions that I don't know. And I don't want to play with that, I don't want to lose my Ubuntu data, these are my partitions: The 38Gb partition is Ubuntu. What I need to do for deleting Lubuntu and enter to Ubuntu directly on the boot?. Remember the Swap's partition! (HowTos)