Fix qbittorrent startup loop on aarch64: drop s6-notifyoncheck

s6-notifyoncheck writes to fd 3 when its readiness check passes, but
the LSIO aarch64 image's svc-qbittorrent service has no notification-fd
file so s6-rc never opens fd 3. s6-notifyoncheck exits with EBADF, s6
sees the supervised process die and immediately restarts it, producing
the infinite "Starting qBittorrent..." loop seen on odroid-c2 and other
aarch64 boards.

Drop s6-notifyoncheck entirely and exec qbittorrent-nox directly under
s6-setuidgid so s6 supervises the real process. Silent mode is handled
by redirecting the shell's fds before exec rather than passing a
/dev/stdout path (avoids a separate class of ARM container fd issues).

https://claude.ai/code/session_01F16ThtZyfXj6ZKFPkrSAAq

qbittorrent/CHANGELOG.md

@@ -1,4 +1,7 @@
 
+## 5.2.0-2 (2026-05-10)
+- Fix startup loop on aarch64: drop s6-notifyoncheck wrapper so s6 supervises qbittorrent-nox directly (LSIO arm64 image has no notification-fd, causing EBADF restart loop)
+
 ## 5.2.0-1 (2026-05-10)
 - Fix qbittorrent-nox path (/usr/bin → /app) after LSIO image update
 

qbittorrent/config.yaml

@@ -143,4 +143,4 @@ schema:
 slug: qbittorrent
 udev: true
 url: https://github.com/alexbelgium/hassio-addons
-version: "5.2.0-1"
+version: "5.2.0-2"

qbittorrent/rootfs/etc/s6-overlay/s6-rc.d/svc-qbittorrent/run

@@ -36,14 +36,14 @@ fi
 
 # --- Launch qBittorrent ---
 
-# Determine log output based on silent mode
-QB_OUTPUT="/dev/stdout"
-if bashio::config.true 'silent'; then
-    QB_OUTPUT="/dev/null"
-fi
-
 bashio::log.info "Starting qBittorrent..."
 
-exec \
-    s6-notifyoncheck -d -n 300 -w 1000 -c "nc -z localhost ${WEBUI_PORT}" \
-    s6-setuidgid abc /app/qbittorrent-nox --webui-port="${WEBUI_PORT}" > "${QB_OUTPUT}"
+# On aarch64 LSIO images svc-qbittorrent has no notification-fd, so fd 3 is never
+# opened by s6-rc. s6-notifyoncheck then exits with EBADF after its check passes,
+# s6 sees the supervised process die and restarts it — causing the startup loop.
+# Run qbittorrent-nox directly so s6 supervises the actual process.
+if bashio::config.true 'silent'; then
+    exec > /dev/null 2>&1
+fi
+
+exec s6-setuidgid abc /app/qbittorrent-nox --webui-port="${WEBUI_PORT}"