Installing ec2-ami-tools on AWS Ubuntu 10.04 image

I have just spend a disproportionate amount of time solving this simple question.

It is actually pretty easy: Enable the multiverse reposity, update, and install.

The multiverse repository is enable by editing /etc/apt/sources.list

sudo nano /etc/apt/sources.list

Change:

deb http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid main universe
deb-src http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid main universe
deb http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid-updates main universe
deb-src http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid-updates main universe
deb http://security.ubuntu.com/ubuntu lucid-security main universe
deb-src http://security.ubuntu.com/ubuntu lucid-security main universe

to:

deb http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid main universe multiverse
deb-src http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid main universe multiverse
deb http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid-updates main universe multiverse
deb-src http://eu-west-1.ec2.archive.ubuntu.com/ubuntu/ lucid-updates main universe multiverse
deb http://security.ubuntu.com/ubuntu lucid-security main universe multiverse
deb-src http://security.ubuntu.com/ubuntu lucid-security main universe multiverse

Now run:

sudo apt-get update

and install:

sudo apt-get install ec2-ami-tools