Ok, so how did the switch really go?

• I didn't go on vacation just after pushing the change of course ;)

• Testing went quite well. We only found one custom daemon that was still storing too much data in /var/run, which had become a small tmpfs, and failing (/var/run used to be part of the root filesystem). It was rebuilt to store data where it was supposed to.

• Most of the time was actually spent helping our package owners convert their RPMs to debs and switching to new upload and review mechanisms.

• We also wrote new review tools to diff and review our new image, built from scratch each time.