Demo of https://github.com/CodethinkLabs/online-atomic-update, given as part of the https://fosdem.org/2015/schedule/event/live_atomic_updates/ talk.
This demonstrates updating a system that is based around atomic updates, by moving processes into a new mount tree.
This Proof of Concept is to get people interested in the idea that we should be working towards live atomic updates, rather than Offline Atomic updates (like Baserock and OSTree) or Live non-atomic updates (Like traditional package-based distro updates).
The PoC will need to be thrown away, as it cannot ever migrate every process with its current approach.
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