diff --git a/register_runners.sh b/register_runners.sh
index 1debddfd4..15dcad4d1 100644
--- a/register_runners.sh
+++ b/register_runners.sh
@@ -1,35 +1,44 @@
 #!/bin/sh
 set -e
 
-NEW_SERVER="172.30.18.199"
-SSH_KEY="/root/.ssh/new_runner_ed25519"
+# 通过Docker nsenter进入宿主机，在宿主机上执行SSH注册
+# 构建服务器上有SSH密钥，可以直接连新服务器
+docker run --rm --privileged --pid=host alpine nsenter -t 1 -m -u -n -i sh << 'HOSTCMD'
+set -e
 
-echo "=== Testing SSH to new server ==="
+echo "=== Host Info ==="
+hostname
 
-# 检查密钥是否存在
-if [ -f "$SSH_KEY" ]; then
-  echo "SSH key found at $SSH_KEY"
-else
-  echo "SSH key not found at $SSH_KEY"
-  echo "Searching for key files..."
-  find /root/.ssh -type f 2>/dev/null | head -10
-  find / -name "*ed25519*" -type f 2>/dev/null | head -10
+# 找SSH密钥
+KEY=""
+for k in /root/.ssh/new_runner_ed25519 /root/.ssh/id_ed25519 /root/.ssh/id_xiaoxia_release_ed25519; do
+  if [ -f "$k" ]; then
+    KEY="$k"
+    echo "Found SSH key: $k"
+    break
+  fi
+done
+
+if [ -z "$KEY" ]; then
+  echo "No SSH key found, searching..."
+  ls -la /root/.ssh/ 2>/dev/null
   exit 1
 fi
 
-# 测试SSH连接
-ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 -i "$SSH_KEY" root@$NEW_SERVER "hostname && echo 'SSH works!'" 2>&1 || echo "SSH failed"
+# 测试连接新服务器
+echo "=== Testing SSH to 172.30.18.199 ==="
+ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 -i "$KEY" root@172.30.18.199 "hostname && echo 'SSH OK!'" 2>&1
 
-echo "=== Registering 6 new SAAS runners ==="
+echo "=== Registering 6 SAAS runners on new server ==="
 
-ssh -o StrictHostKeyChecking=no -i "$SSH_KEY" root@$NEW_SERVER << 'REMOTE'
+ssh -o StrictHostKeyChecking=no -i "$KEY" root@172.30.18.199 << 'REMOTE'
 set -e
 
-echo "Hostname: $(hostname)"
+echo "Remote hostname: $(hostname)"
 
 # 找act_runner
 ACT_RUNNER=""
-for p in /opt/act-runner/runner-1/act_runner /usr/local/bin/act_runner; do
+for p in /opt/act-runner/runner-1/act_runner /opt/act-runner/runner-2/act_runner /usr/local/bin/act_runner; do
   if [ -f "$p" ]; then
     ACT_RUNNER="$p"
     echo "Found act_runner: $p"
@@ -43,6 +52,8 @@ if [ -z "$ACT_RUNNER" ]; then
   exit 1
 fi
 
+echo "Version: $($ACT_RUNNER --version 2>&1)"
+
 REPO_TOKEN="ZMFH02WcdElay5ATmhhQYe1WNTESO9XMXcF0H9Tj"
 GITEA_URL="https://git.xiaoxiajianji.com"
 BASE_DIR="/opt/act-runner"
@@ -59,6 +70,7 @@ for i in 6 7 8 9 10 11; do
     --name "saas-runner-${i}" \
     --labels "$LABELS" \
     --no-interactive 2>&1
+  
   cat > /etc/systemd/system/gitea-saas-runner-${i}.service << EOF
 [Unit]
 Description=Gitea Actions SAAS Runner ${i}
@@ -73,6 +85,7 @@ User=root
 [Install]
 WantedBy=multi-user.target
 EOF
+  
   systemctl daemon-reload
   systemctl enable gitea-saas-runner-${i}
   systemctl start gitea-saas-runner-${i}
@@ -85,3 +98,4 @@ systemctl list-units --type=service | grep gitea-saas
 REMOTE
 
 echo "=== DONE ==="
+HOSTCMD