There was some discussion of that in the original announcement. Apparently the kernel requirement is because the root fs is a network drive, and the system PXE-boots: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9309661" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9309661</a>