diff --git a/nerdctl/setup_nvidia_docker_containerd_rootless.sh b/nerdctl/setup_nvidia_docker_containerd_rootless.sh
index e988f0e..1ec10f9 100755
--- a/nerdctl/setup_nvidia_docker_containerd_rootless.sh
+++ b/nerdctl/setup_nvidia_docker_containerd_rootless.sh
@@ -28,13 +28,13 @@ install_nvidia_docker() {
 configure_nvidia_ctk() {
     echo "正在配置 NVIDIA Container Toolkit..."
     
-    # 创建配置目录
+    # 创建 Rootless 模式下的 containerd 配置目录
     mkdir -p "$HOME/.config/containerd"
 
-    # 配置 nvidia-ctk 到 rootless 模式下的 config.toml
+    # 配置 nvidia-ctk 到 Rootless 模式下的 config.toml
     nvidia-ctk runtime configure --runtime=containerd --config="$HOME/.config/containerd/config.toml"
 
-    # 如果没有 /etc/nvidia-container-runtime/config.toml，则生成默认配置
+    # 确保 /etc/nvidia-container-runtime/config.toml 存在，并配置为默认 runtime
     if [ ! -f /etc/nvidia-container-runtime/config.toml ]; then
         sudo nvidia-ctk config --set default-runtime --config=/etc/nvidia-container-runtime/config.toml
     fi
@@ -44,8 +44,10 @@ configure_nvidia_ctk() {
     sudo ldconfig
 
     # 添加 nvidia-container-cli 到 PATH
-    echo 'export PATH=$PATH:/usr/bin' >> ~/.profile
-    source ~/.profile
+    if ! echo "$PATH" | grep -q "/usr/bin"; then
+        echo 'export PATH=$PATH:/usr/bin' >> ~/.profile
+        source ~/.profile
+    fi
 }
 
 # 启用 cgroup v2 支持和权限调整
@@ -53,9 +55,12 @@ configure_cgroup_v2() {
     echo "配置 cgroup v2 支持..."
     sudo chmod -R 755 /sys/fs/cgroup
     sudo chown -R $(whoami) /sys/fs/cgroup
+
+    # 创建并设置 /etc/cni/tuning/allowlist.conf 文件
     sudo mkdir -p /etc/cni/tuning
     sudo touch /etc/cni/tuning/allowlist.conf
     sudo chmod 644 /etc/cni/tuning/allowlist.conf
+    sudo chown -R $(whoami) /etc/cni
 }
 
 # 重启 containerd 服务