Ubuntu 8.10 (Intrepid) for XO

Here is a link that explains how to set up Ubuntu on the XO.
(via OLPC News)
Addendum: 18/2/9
I installed it and it worked flawlessly. Here are my notes on the installation:

000. Remove the SD card and start the XO.
001. Start Terminal in Sugar.
002. Connect the USB drive
003. Run mount | grep /dev/sd , repeat until it returns a line like this:
     > /dev/sda1 on /media/ORNGESLIDE2 type vfat rw
004. Become root and stop haldaemon:
     	    sudo -s
     	    /etc/init.d/haldaemon stop
005. Insert SD card into the slot (the card will be erased, so back up all data
     on it that you want to preserve).
006. Erase MBR and partition table:
     	   dd if=/dev/zero of=/dev/mmcblk0 bs=4096 count=1
007. Make the partition table:
     	  echo -e ',,L,*\n\n\n' | sfdisk /dev/mmcblk0
008. Create the root filesystem:
     	    mke2fs -jLOLPCRoot /dev/mmcblk0p1
009. Mount the filesystem and unpack the tarball onto it:
     	   mount /dev/mmcblk0p1 /mnt
	   cd /mnt
	   tar xvjf /media/ORNGESLIDE2/OLPCFiles-intrepid-20081130.tar.bz2
010. Copy the developer key:
     tar xvf /media/ORNGESLIDE2/security.tar.gz
011. Reboot:
	reboot
012. Got the "Card didn't power up after 1 second" error:
     http://www.olpcnews.com/forum/index.php?topic=4053.msg28224#msg28224
     http://www.olpcnews.com/forum/index.php?topic=4053.msg28084#msg28084
     > I waited at the ok prompt and typed boot and it worked.
     > Recommended advice is if that works, to upgrade the firmware.
     > I will hold off for now.
013. After booting into a new system,
     log in as user olpc with password olpcolpc, and perform final updates:
014. Click on the Network Manager icon at the bottom panel,
     select the wireless network you want to use.
     If wireless network uses encryption,
     you will be prompted for the key/password.
     If it's a public access point that requires browser login
     (like T-Mobile hotspot), start Firefox and log in.
     Start Terminal and complete the configuration:
     	   passwd
		(enter olpcolpc as the current password,
		then twice the password you intend to use)
		sudo aptitude update
		sudo aptitude safe-upgrade
		sudo aptitude reinstall ssl-cert
		sudo aptitude clean
		sudo /etc/init.d/cups start
015. Configure mplayer
     	       mkdir .mplayer
	       echo -e 'vo=sdl\nframedrop=1\nlavdopts=skiploopfilter=all:fast=1' > .mplayer/config
exit
016. Install flash plugin
    	    sudo aptitude install flashplugin-nonfree
	    sudo ln -s /etc/alternatives/firefox-flashplugin /usr/lib/firefox-addons/plugins/flashplugin-alternative.so
017. In Firefox, installed the plugins:
       flashblock
       adblock plus
018. Set the timezone:
       sudo dpkg-reconfigure  tzdata
019. Boot failed, instead it went into Sugar.
    Ran e2fsck -y /dev/mmcblk0p1
    	This fixed a bunch of errors. I killed e2fsck the first time,
	apparently with no ill effects.
    Rebooted, held the 'square' joystick button,
    hit escape 'x' on the keyboard to get the boot prompt 'ok'.
    Typed: boot sd:\boot\olpc.fth
    System worked, got keyring question
    	   Used the old default pw
	   Reset doing: rm .gnome2/keyrings/login.keyring
	   Logged out and in
020. Set up some swap space
     	 sudo dd if=/dev/zero of=/swap.bin bs=1M count=256
	 sudo chmod 600 /swap.bin
	 sudo mkswap /swap.bin
	 In /etc/fstab add:
	    /swap.bin none swap defaults 0 0
	 In /etc/sysctl.confg add:
	    # Swap as little as possible
	    vm.swappiness=0