diff --git a/Partnership/partnership_onboard.sh b/Partnership/partnership_onboard.sh
index 8f2d7cb..295670b 100755
--- a/Partnership/partnership_onboard.sh
+++ b/Partnership/partnership_onboard.sh
@@ -369,17 +369,74 @@ if [[ "$AM_MIRROR" == true ]]; then
         OWNER_SCRIPTS_DIR=$(resolve_remote_scripts_dir "$OWNER_IP")
 
         if [[ "$DRY_RUN" == true ]]; then
-            warn "DRY RUN — would SSH to $OWNER ($OWNER_IP) and trigger Phase 2"
-            PHASE2_TRIGGERED=true
-        elif timeout "$SSH_TIMEOUT" ssh -i "$SSH_KEY" \
-            -o ConnectTimeout="$SSH_TIMEOUT" -o BatchMode=yes root@"$OWNER_IP" \
-            "nohup bash '${OWNER_SCRIPTS_DIR}/Partnership/partnership_onboard.sh' --phase2-only > /tmp/vv_phase2_onboard.log 2>&1 & echo triggered" \
-            2>/dev/null | grep -q triggered; then
-            echo "Phase 2 triggered on $OWNER ✅"
-            log "Watch progress on $OWNER: tail -f /tmp/vv_phase2_onboard.log"
+            warn "DRY RUN — would SSH to $OWNER ($OWNER_IP) and trigger Phase 2 via run_job.sh"
             PHASE2_TRIGGERED=true
         else
-            warn "Could not auto-trigger Phase 2 on $OWNER"
+            # Launched through run_job.sh, the same path cron and api/run.php use, so Phase 2
+            # gets a stat file, a job log and a Scheduler entry on the owner. It used to be a
+            # bare `nohup … > /tmp/vv_phase2_onboard.log`, which ran fine and left the owner's
+            # entire half of onboarding invisible to its own WebGUI — no job record, nothing
+            # under /var/log/varaverk, nothing for the operator to look at when asking why
+            # pressing Onboard here appeared to do nothing.
+            #
+            # setsid, not bare nohup: the job must lead its own process group so api/stop.php
+            # can signal the whole tree. api/run.php carries the same note for the same reason.
+            #
+            # Reported triggered only after the stat file proves run_job.sh actually started.
+            # The old `& echo triggered` printed unconditionally — it would have claimed success
+            # for a path that does not exist on the owner, which is exactly the failure mode a
+            # mirror in a different storage mode hits.
+            # Its own timeout, not SSH_TIMEOUT: the remote waits for the runner to prove itself,
+            # and 15s would cut that short and report a healthy launch as a failure.
+            _phase2_out=$(timeout 40 ssh -i "$SSH_KEY" \
+                -o ConnectTimeout="$SSH_TIMEOUT" -o BatchMode=yes root@"$OWNER_IP" \
+                "bash -s -- $(printf '%q' "$OWNER_SCRIPTS_DIR")" 2>/dev/null <<'PHASE2_TRIGGER'
+sd="$1"
+runner="$sd/Plugin/unraid/run_job.sh"
+script="$sd/Partnership/partnership_onboard.sh"
+stat_file="/var/log/varaverk/Partnership/partnership_onboard.json"
+
+[ -f "$runner" ] || { echo "missing-runner:$runner"; exit 1; }
+[ -f "$script" ] || { echo "missing-script:$script"; exit 1; }
+
+# Absolute, not "newer than the file we saw a moment ago". A previous run's stat file rewritten
+# inside the same second would compare equal and read as a failed launch.
+t0=$(date +%s)
+
+setsid nohup bash "$runner" "Partnership/partnership_onboard.sh" "$script" \
+    --manual --phase2-only >/dev/null 2>&1 </dev/null &
+
+# run_job.sh writes the stat file before it execs the script, so a stat file dated at or after
+# the moment we launched is proof the runner is alive — rather than proof the ssh call returned.
+for _ in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
+    sleep 1
+    [ -f "$stat_file" ] || continue
+    now=$(date -r "$stat_file" +%s 2>/dev/null || echo 0)
+    [ "$now" -ge "$t0" ] && { echo triggered; exit 0; }
+done
+echo start-failed
+exit 1
+PHASE2_TRIGGER
+            )
+            case "$_phase2_out" in
+                *triggered*)
+                    echo "Phase 2 triggered on $OWNER ✅"
+                    log "Watch on $OWNER: Scheduler tab, or tail -f /var/log/varaverk/Partnership/partnership_onboard.log"
+                    PHASE2_TRIGGERED=true
+                    ;;
+                missing-runner:*)
+                    error "Phase 2 not started — no run_job.sh at ${_phase2_out#missing-runner:} on $OWNER"
+                    ;;
+                missing-script:*)
+                    error "Phase 2 not started — no partnership_onboard.sh at ${_phase2_out#missing-script:} on $OWNER"
+                    ;;
+                *start-failed*)
+                    error "Phase 2 launch on $OWNER did not produce a job record — check run_job.sh there"
+                    ;;
+                *)
+                    warn "Could not auto-trigger Phase 2 on $OWNER"
+                    ;;
+            esac
         fi
     else
         warn "Cannot resolve $OWNER Tailscale IP"