Comment 18 for bug 615545

I agree with Eric and cloudcontrol, for CNAMEs being the correct solution.

In the meantime, there's a problem with using any debian package from within ec2 instances - you can't contact the repository to install any packages, so using a package to fix the problem presents something of a bootstrapping problem.

That includes, by the way, anything that requires apt-mirror, since apt-mirror is not part of the barebones Lucid AMI, and thus requires installation, which requires connecting to the repo...

I have an alternative solution, which requires no package installation, and which I will be using until this problem is fixed. Rather than installing packages, I have chosen the simpler direct manipulation of the sources.list file, like this:

sed -i -e 's/eu-west-1.ec2/uk/' /etc/apt/sources.list

Change 'uk' to be whatever your closest mirror is, and you'll be running again.