diff --git a/src/downloadworker.cpp b/src/downloadworker.cpp
index 7a54e75..22ca16f 100644
--- a/src/downloadworker.cpp
+++ b/src/downloadworker.cpp
@@ -93,6 +93,28 @@ DownloadController::DownloadController(QObject *parent)
 {
     Q_UNUSED(parent)
 
+    // 初始化默认域名
+    domains.clear();
+    domains.append("d.store.deepinos.org.cn");
+
+    QFile serverList(QDir::homePath().toUtf8() + "/.config/spark-store/server.list");
+    if(serverList.open(QFile::ReadOnly))
+    {
+        QStringList list = QString(serverList.readAll()).trimmed().split("\n");
+        qDebug() << list << list.size();
+
+        for (int i = 0; i < list.size(); i++) {
+            if (list.at(i).contains("镜像源 Download only") && i + 1 < list.size()) {
+                for (int j = i + 1; j < list.size(); j++) {
+                    domains.append(list.at(j));
+                }
+                break;
+            }
+        }
+    }
+    qDebug() << domains.size();
+
+    /*
     domains = {
         "d1.store.deepinos.org.cn",
         "d2.store.deepinos.org.cn",
@@ -100,7 +122,8 @@ DownloadController::DownloadController(QObject *parent)
         "d4.store.deepinos.org.cn",
         "d5.store.deepinos.org.cn"
     };
-    this->threadNum = domains.size() > 5 ? 5 : domains.size();
+    */
+    this->threadNum = domains.size();
 }
 
 DownloadController::~DownloadController()
diff --git a/src/widget.cpp b/src/widget.cpp
index 30160c1..b2f2360 100644
--- a/src/widget.cpp
+++ b/src/widget.cpp
@@ -270,6 +270,14 @@ void Widget::initConfig()
             {
                 ui->comboBox_server->model()->setData(ui->comboBox_server->model()->index(i, 0), QVariant(0), Qt::UserRole - 1);
             }
+            if(ui->comboBox_server->itemText(i) == "镜像源 Download only")
+            {
+                for(int j = i; j < ui->comboBox_server->count(); j++)
+                {
+                    ui->comboBox_server->model()->setData(ui->comboBox_server->model()->index(j, 0), QVariant(0), Qt::UserRole - 1);
+                }
+                break;
+            }
         }
     }
     else
@@ -1012,7 +1020,7 @@ void Widget::on_comboBox_server_currentIndexChanged(const QString &arg1)
 
     if(configCanSave)
     {
-        ui->label_setting1->show();
+        // ui->label_setting1->show();
         QSettings *setConfig = new QSettings(QDir::homePath() + "/.config/spark-store/config.ini", QSettings::IniFormat);
         setConfig->setValue("server/choose", arg1);
     }
@@ -1051,6 +1059,14 @@ void Widget::on_pushButton_updateServer_clicked()
             {
                 ui->comboBox_server->model()->setData(ui->comboBox_server->model()->index(i, 0), QVariant(0), Qt::UserRole - 1);
             }
+            if(ui->comboBox_server->itemText(i) == "镜像源 Download only")
+            {
+                for(int j = i; j < ui->comboBox_server->count(); j++)
+                {
+                    ui->comboBox_server->model()->setData(ui->comboBox_server->model()->index(j, 0), QVariant(0), Qt::UserRole - 1);
+                }
+                break;
+            }
         }
     });
 }
@@ -1101,7 +1117,7 @@ void Widget::on_pushButton_updateApt_clicked()
                 system(("chmod +x " + tmpPath + "/update.sh").c_str());
 
                 QProcess runupdate;
-                runupdate.start(QString::fromStdString("pkexec " + tmpPath + "/update.sh"), QStringList());
+                runupdate.start("pkexec", QStringList() << QString::fromStdString(tmpPath + "/update.sh"));
                 runupdate.waitForFinished();
                 QString error = runupdate.readAllStandardError();