Install Grub 2 on Ubuntu {Jaunty Jackalope}: How-to
I was wondering when will Ubuntu have a stylish GRUB. To my surprise I read that the next release of Ubuntu 9.10 i.e Karmic Kaola will ship with Grub 2. I was excited and wanted to try it on my machine. Following is what I did to install Grub 2 on Jaunty.
A word of Caution: When you try to install it on Jaunty you’ll not be able to login to your machine untill you follow the steps carefully and change “root” to “uuid”.
Let’s being…
1. Bring up a terminal window by hittin ALT+F2 and typing “gnome-terminal” (without quotes).

2. Type the following on your terminal:
sudo apt-get install grub-pc
Click enter to install Grub 2 and will modify the existing grub boot loader menu.
3. Reboot your machine.
In Jaunty Grub 2 modifies the existing configuration incorrectly and we are going to change it. After rebooting at the “Chainload into Grub 2″ menu item press ‘e’ to edit the configuration and change:
root xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
to
uuid xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
Press Enter and then press ‘b’ to boot into Jaunty. Once you have successfully booted from Grub 2 you can install Grub 2 on your machine by hitting the following command on your terminal window:
sudo upgrade-from-grub-legacyAll should be fine after this and you have your new Grub 2 to rock with. Following is how your grub 2 will look like

If you mess up something, follow the steps here.
Update
As Brian mentioned in the comments, you can make your Grub 2 look better in graphic mode. Check here to pimp up your Grub 2. Thanks Brian!

















