diff --git a/register_runners.sh b/register_runners.sh
index a1a14cd05..1485fa37d 100644
--- a/register_runners.sh
+++ b/register_runners.sh
@@ -1,39 +1,57 @@
 #!/bin/bash
 set -e
 
-REPO_TOKEN="ZMFH02WcdElay5ATmhhQYe1WNTESO9XMXcF0H9Tj"
-GITEA_URL="https://git.xiaoxiajianji.com"
-BASE_DIR="/opt/act-runner"
-LABELS="saas,runtime-builder,host,ubuntu-latest"
+echo "=== 探测Runner环境 ==="
+echo "Hostname: $(hostname)"
+echo "IPs: $(hostname -I)"
+
+# 找act_runner
+ACT_RUNNER=""
+for p in /opt/act-runner/runner-1/act_runner /opt/act-runner/runner-2/act_runner /var/lib/xiaoxia-ci/act_runner /usr/local/bin/act_runner; do
+    if [ -f "$p" ]; then
+        ACT_RUNNER="$p"
+        echo "Found act_runner: $p"
+        $p --version 2>&1 || true
+        break
+    fi
+done
 
-# 找到act_runner二进制
-ACT_RUNNER=$(find /opt/act-runner -name act_runner -type f 2>/dev/null | head -1)
 if [ -z "$ACT_RUNNER" ]; then
-    echo "ERROR: act_runner binary not found"
-    find / -name act_runner -type f 2>/dev/null | head -5
+    echo "Searching for act_runner..."
+    find /opt /var -name act_runner -type f 2>/dev/null | head -10
+    echo "ERROR: act_runner not found"
     exit 1
 fi
-echo "Found act_runner: $ACT_RUNNER"
-echo "Version: $($ACT_RUNNER --version 2>&1)"
 
-# 注册6个新的仓库级Runner
-for i in $(seq 6 11); do
-    RUNNER_DIR="${BASE_DIR}/saas-runner-${i}"
-    echo "=== Registering saas-runner-${i} ==="
+# 只在新服务器上执行（hostname包含new或特定标识）
+# 或者只在有多个runner目录的服务器上执行
+RUNNER_COUNT=$(find /opt/act-runner -maxdepth 1 -type d -name "runner-*" 2>/dev/null | wc -l)
+echo "Runner dirs count: $RUNNER_COUNT"
+
+# 如果是新服务器（有5个runner目录），执行注册
+if [ "$RUNNER_COUNT" -ge 5 ]; then
+    echo "=== 检测到新服务器，开始注册6个仓库级Runner ==="
     
-    mkdir -p "$RUNNER_DIR"
-    cd "$RUNNER_DIR"
+    REPO_TOKEN="ZMFH02WcdElay5ATmhhQYe1WNTESO9XMXcF0H9Tj"
+    GITEA_URL="https://git.xiaoxiajianji.com"
+    BASE_DIR="/opt/act-runner"
+    LABELS="saas,runtime-builder,host,ubuntu-latest"
     
-    # 注册
-    $ACT_RUNNER register \
-        --instance "$GITEA_URL" \
-        --token "$REPO_TOKEN" \
-        --name "saas-runner-${i}" \
-        --labels "$LABELS" \
-        --no-interactive 2>&1
-    
-    # 创建systemd服务
-    cat > /etc/systemd/system/gitea-saas-runner-${i}.service << EOF
+    for i in $(seq 6 11); do
+        RUNNER_DIR="${BASE_DIR}/saas-runner-${i}"
+        echo "--- Registering saas-runner-${i} ---"
+        
+        mkdir -p "$RUNNER_DIR"
+        cd "$RUNNER_DIR"
+        
+        $ACT_RUNNER register \
+            --instance "$GITEA_URL" \
+            --token "$REPO_TOKEN" \
+            --name "saas-runner-${i}" \
+            --labels "$LABELS" \
+            --no-interactive 2>&1
+        
+        cat > /etc/systemd/system/gitea-saas-runner-${i}.service << EOF
 [Unit]
 Description=Gitea Actions Runner saas-${i}
 After=network.target
@@ -49,13 +67,18 @@ User=root
 [Install]
 WantedBy=multi-user.target
 EOF
+        
+        systemctl daemon-reload
+        systemctl enable gitea-saas-runner-${i}
+        systemctl start gitea-saas-runner-${i}
+        echo "Started saas-runner-${i}"
+        sleep 1
+    done
     
-    systemctl daemon-reload
-    systemctl enable gitea-saas-runner-${i}
-    systemctl start gitea-saas-runner-${i}
-    echo "Started saas-runner-${i}"
-    sleep 1
-done
-
-echo "=== All 6 runners registered ==="
-systemctl status gitea-saas-runner-* --no-pager | head -40
+    echo "=== 全部注册完成 ==="
+    systemctl status gitea-saas-runner-* --no-pager | head -60
+else
+    echo "不是新服务器（Runner目录不足5个），跳过注册"
+    echo "这台机器上Runner目录数: $RUNNER_COUNT"
+    ls /opt/act-runner/ 2>/dev/null || echo "no /opt/act-runner"
+fi