Code review comment for lp:~vorlon/livecd-rootfs/minimize-round-two

Ok, so testing this branch on GKE is in a bit of a catch-22 situation right now:

- I can't test this on xenial (the gke images are xenial-only for production): it fails to build because it needs a more recent live-build (https://pastebin.canonical.com/201353/). This is a heads up when backporting the changes to xenial, too.

- I can't test this on artful either (as a non-production image to kick the tires) because linux-gke (and linux-aws, even if not so relevant) don't exist there.

- I can't test a minimized *GCE* image with trunk sauce either, it fails with https://pastebin.canonical.com/201397/ . This one could probably be solved by running "mkdir -p <mountpoint>/etc/initramfs-tools/conf.d/" (initramfs-tools obviously didn't create that folder since it was not installed). I could also change the sauce to test for minimized, if that's a better solution.

All of those failures seem to be unrelated to your changes here (that look otherwise sensible). Will investigate/try to get a run with a (at least temporary) fixed sauce tomorrow.