On Thu, 2017-06-22 at 07:56 -0500, John Goerzen wrote: > After the upgrade to stretch, my kernel paniced on boot. I > eventually tracked the problem down to /usr not yet being mounted, > and /sbin/init needing liblz4.so which was in /usr.
The /usr filesystem must be mounted by the initramfs (if it is a separate partition). See [1]. Ansgar [1] https://www.debian.org/releases/stretch/amd64/release-notes/ch-information.en.html#late-mounting-usr

