Comment 1 for bug 777759

I think we should SRU this, although it'll only be effective with new live CD builds; I can certainly do custom ones for prior releases although the only one that will definitely be released as a point release is Lucid. Testing will be a pain on Lucid and Natty as there won't naturally be any releases to upgrade to; for those releases, it might be simplest to test for regressions (e.g. the system boots without errors, etc.).