It worked for me when I was on the Latest ultimate droid rom.
Sent from my Droid using DroidForums
Just installed the latest UD and tried again... nothing.. I got the errors to show though here's the output...
$ export PATH=/data/local/bin:$PATH
Ubuntu for Android.txt ubuntu.img ubuntu.sh
# sh ubuntu.sh
WARNING: If you have more than 255 apps installed on the SDCard, then mounting the ubuntu.img will fail!
Apps on the SDCard associate with an encrypted loop device, and there are only 256 available to the system.
You have to go to Settings -> Manage Applications -> On SDCard, and move some apps back to phone storage in order to free up a loop device for ubuntu. Make sure you reboot the phone after doing this, then try again.
Please wait while booting ubuntu.img.. This can take some time...
mount: mounting /dev/block/loop255 on /data/local/mnt failed: Invalid argument
mount: mounting /sdcard/external_sd on /data/local/mnt/external_sd failed: No such file or directory
chroot: can't execute '/root/init.sh': No such file or directory
Exiting chroot environment and sync'ing memory to storage..
DO NOT EXIT until finished - doing so may corrupt the ubuntu.img!
umount: can't forcibly umount /data/local/mnt/external_sd: Invalid argument