Comment 37 for bug 1079729

once there is a 20121123 directory (should show up around 15:30 UTC tomorrow) at http://cdimage.ubuntu.com/daily-preinstalled you can try one of the experimental raring images the following manual way:

grab both files (img.gz and .bootimg)
gunzip the img.gz file

attach your device in flash mode and run the following four fastboot commands:

sudo fastboot erase boot
sudo fastboot erase userdata
sudo fastboot flash boot /path/to/downloaded/*.bootimg
sudo fastboot flash userdata /path/to/unzipped/*.img

and then to reboot:
sudo fastboot reboot

note that the images arent ready for general use yet, but you should get through to the graphical configuration if the fix works