revert 1163344dde

revert 更新 setup.sh

setup.sh

@@ -21,28 +21,11 @@ for choice in $choices; do
         sysctl -p
         ;;
     2)
-      while true; do
-          echo "输入Swap内存大小(MB) [默认: 2048, 5秒后自动使用默认值]: "
-          if read -t 5 -p "> " swap_size; then
-              if [ -z "$swap_size" ]; then
-                  swap_size=2048
-                  echo "使用默认值: ${swap_size}MB"
-                  break
-              elif [[ "$swap_size" =~ ^[0-9]+$ ]]; then
-                  echo "使用输入的大小: ${swap_size}MB"
-                  break
-              else
-                  echo "错误: 请输入有效的数字！"
-                  continue
+        echo "输入Swap内存大小(MB) [默认: 2G]: "
+        read -t 5 -p "> " swap_size
+        if [ $? -ne 0 ] || [ -z "$swap_size" ]; then
+            echo -e "\n使用默认值: ${swap_size}MB"
         fi
-          else
-              swap_size=2048
-              echo -e "\n超时, 使用默认值: ${swap_size}MB"
-              break
-          fi
-      done
-
-      echo "执行设置Swap内存大小的脚本..."
         dd if=/dev/zero of=/swapfile bs=1M count=$swap_size
         mkswap /swapfile
         swapon /swapfile