Dankserver rebooted with the array's mount and the media containers racing. A
rootless quadlet cannot order itself against the system's mnt-entropy.mount, so
`RequiresMountsFor=/mnt/entropy` is inert in the user manager: podman resolved
the bind against the pre-mount directory, Jellyfin and Plex came up blind, and
Jellyfin read an empty library and began `Removing item, Type: "Season"` by the
thousand. Copyparty had no guard at all.
`scripts/wait-for-mount.sh` is the gate: it waits for every named mountpoint,
then refuses by name. `ConditionPathIsMountPoint=` is NOT the fix — measured on
the host, an unmet condition logs `skipped, unmet condition check` with
NRestarts=0 and no start attempt ever follows, which is fail-dead, not
fail-closed. Jellyfin and Plex swap the condition for the gate; Copyparty gets
one; the law is recorded in AGENTS.md and the view page.
Verified on the host: the 5.7.0 quadlet generator accepts ExecStartPre in
[Service] (exit 0, all three units generated, gate present), the gate waits for
a mount that appears mid-window and proceeds, and it refuses a plain directory
after its window naming the path.
tests/media_overlay.bats pinned the old mechanism by name; its intent — both
media servers refuse to start without the view — now rides the gate.
dank
e82c8b2d06