Comment 24 for bug 1308378

Hey hamish. The addition in this bug fix only triggers when upgrading resolvconf from the 12.04 LTS version (1.63), so it doesn't get used in your case. Maybe your problem is simply because resolvconf gets upgraded in the first place in a stable release, and your live cd creation/upgrade process doesn't like that?

For what it's worth, I always create a new live cd based off normal Ubuntu release for point releases, see https://code.launchpad.net/~timo-jyrinki/ubuntu-fi-remix/main - and I only temporarily, manually, edit /run/resolvconf/resolv.conf during the preparation nowadays. I don't know if that helps, but maybe the idea of doing your resolv.conf changes inside /run/ would help you too.