diff --git a/dd-core.sh b/dd-core.sh
deleted file mode 100644
index 3060e41..0000000
--- a/dd-core.sh
+++ /dev/null
@@ -1,120 +0,0 @@
-#!/bin/bash
-# DD 重装系统脚本 - Debian 13
-# 此文件由引导脚本下载后本地执行，stdin 正常可用
-
-set -e
-
-# 颜色
-R='\033[0;31m' G='\033[0;32m' Y='\033[0;33m' B='\033[0;34m' N='\033[0m'
-
-echo -e "${B}╔══════════════════════════════════════╗${N}"
-echo -e "${B}║     DD 重装系统 - Debian 13          ║${N}"
-echo -e "${B}╚══════════════════════════════════════╝${N}"
-echo
-
-# 默认值
-DEF_PWD="Mng@2026DD!"
-DEF_PORT="22"
-DEF_HOST="debian"
-DEF_TZ="Asia/Hong_Kong"
-DEF_SWAP="1024"
-
-# 交互输入
-read -p "$(echo -e ${G}主机名${N} [${DEF_HOST}]: )" MYHOST
-MYHOST=${MYHOST:-$DEF_HOST}
-
-read -p "$(echo -e ${G}SSH端口${N} [${DEF_PORT}]: )" MYPORT
-MYPORT=${MYPORT:-$DEF_PORT}
-
-read -sp "$(echo -e ${G}root密码${N} [默认: ${DEF_PWD}]: )" MYPWD
-echo
-MYPWD=${MYPWD:-$DEF_PWD}
-
-read -p "$(echo -e ${G}时区${N} [${DEF_TZ}]: )" MYTZ
-MYTZ=${MYTZ:-$DEF_TZ}
-
-read -p "$(echo -e ${G}Swap大小MB${N} [${DEF_SWAP}]: )" MYSWAP
-MYSWAP=${MYSWAP:-$DEF_SWAP}
-
-read -p "$(echo -e ${G}启用BBR${N} [Y/n]: )" BBR
-BBR=${BBR:-Y}
-
-# 系统选择
-echo
-echo -e "${Y}选择系统:${N}"
-echo "  1) Debian 13 (默认)"
-echo "  2) Debian 12"
-echo "  3) Ubuntu 24.04"
-echo "  4) Ubuntu 22.04"
-echo "  5) CentOS 9"
-echo "  6) Alpine 3.19"
-read -p "$(echo -e ${G}选择${N} [1]: )" OS_CHOICE
-OS_CHOICE=${OS_CHOICE:-1}
-
-case $OS_CHOICE in
-  1) OS_FLAG="-debian 13" ;;
-  2) OS_FLAG="-debian 12" ;;
-  3) OS_FLAG="-ubuntu 24.04" ;;
-  4) OS_FLAG="-ubuntu 22.04" ;;
-  5) OS_FLAG="-centos 9" ;;
-  6) OS_FLAG="-alpine 3.19" ;;
-  *) OS_FLAG="-debian 13" ;;
-esac
-
-BBR_FLAG=""
-[[ "${BBR,,}" != "n" ]] && BBR_FLAG="--bbr"
-
-# 确认
-echo
-echo -e "${Y}════════ 确认配置 ════════${N}"
-echo -e "  系统:   ${B}${OS_FLAG}${N}"
-echo -e "  主机名: ${B}${MYHOST}${N}"
-echo -e "  SSH端口: ${B}${MYPORT}${N}"
-echo -e "  密码:   ${B}******${N}"
-echo -e "  时区:   ${B}${MYTZ}${N}"
-echo -e "  Swap:   ${B}${MYSWAP}MB${N}"
-echo -e "  BBR:    ${B}${BBR_FLAG:-关闭}${N}"
-echo -e "${Y}══════════════════════════${N}"
-echo
-read -p "$(echo -e ${R}确认重装? 数据将全部丢失!${N} [y/N]: )" CONFIRM
-[[ "${CONFIRM,,}" != "y" ]] && echo "已取消" && exit 0
-
-# 下载并执行
-echo -e "${G}下载 InstallNET.sh ...${N}"
-if command -v wget &>/dev/null; then
-  wget --no-check-certificate -qO InstallNET.sh \
-    'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh'
-elif command -v curl &>/dev/null; then
-  curl -fsSL -o InstallNET.sh \
-    'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh'
-else
-  echo -e "${R}错误: 需要 wget 或 curl${N}" && exit 1
-fi
-chmod a+x InstallNET.sh
-
-echo -e "${G}开始重装...${N}"
-bash InstallNET.sh $OS_FLAG \
-  -port "$MYPORT" \
-  -pwd "$MYPWD" \
-  -hostname "$MYHOST" \
-  -timezone "$MYTZ" \
-  -swap "$MYSWAP" \
-  $BBR_FLAG
-
-# 修复 GRUB timeout
-GRUB_CFG="/boot/grub/grub.cfg"
-if [ -f "$GRUB_CFG" ]; then
-  if ! grep -q "^set timeout=" "$GRUB_CFG"; then
-    sed -i '/^set default=/a set timeout=5' "$GRUB_CFG"
-    echo -e "${G}已添加 GRUB timeout=5${N}"
-  fi
-fi
-
-echo
-echo -e "${Y}重装完成，10秒后自动重启...${N}"
-for i in $(seq 10 -1 1); do
-  echo -ne "\r${R}${i}${N} 秒后重启... (Ctrl+C 取消)"
-  sleep 1
-done
-echo
-reboot
diff --git a/dd-reinstall.sh b/dd-reinstall.sh
index e9711ea..aaf6391 100644
--- a/dd-reinstall.sh
+++ b/dd-reinstall.sh
@@ -1,18 +1,120 @@
 #!/bin/bash
-# DD 重装系统 - 引导脚本
-# 一键: bash <(curl -sL mjjtop.com/dd)
-# 下载核心脚本到本地再 exec 执行，彻底释放 stdin
+# DD 重装系统 - Debian 13
+# 用法: curl -sL mjjtop.com/dd -o dd.sh && bash dd.sh
 
-CORE_URL="https://mjjtop.com/admin/dd-reinstall/raw/branch/main/dd-core.sh"
-TMP="/tmp/dd-core-$$.sh"
+set -e
 
+# 颜色
+R='\033[0;31m' G='\033[0;32m' Y='\033[0;33m' B='\033[0;34m' N='\033[0m'
+
+echo -e "${B}╔══════════════════════════════════════╗${N}"
+echo -e "${B}║     DD 重装系统 - Debian 13          ║${N}"
+echo -e "${B}╚══════════════════════════════════════╝${N}"
+echo
+
+# 默认值
+DEF_PWD="Mng@2026DD!"
+DEF_PORT="22"
+DEF_HOST="debian"
+DEF_TZ="Asia/Hong_Kong"
+DEF_SWAP="1024"
+
+# 交互输入
+read -p "$(echo -e ${G}主机名${N} [${DEF_HOST}]: )" MYHOST
+MYHOST=${MYHOST:-$DEF_HOST}
+
+read -p "$(echo -e ${G}SSH端口${N} [${DEF_PORT}]: )" MYPORT
+MYPORT=${MYPORT:-$DEF_PORT}
+
+read -sp "$(echo -e ${G}root密码${N} [默认: ${DEF_PWD}]: )" MYPWD
+echo
+MYPWD=${MYPWD:-$DEF_PWD}
+
+read -p "$(echo -e ${G}时区${N} [${DEF_TZ}]: )" MYTZ
+MYTZ=${MYTZ:-$DEF_TZ}
+
+read -p "$(echo -e ${G}Swap大小MB${N} [${DEF_SWAP}]: )" MYSWAP
+MYSWAP=${MYSWAP:-$DEF_SWAP}
+
+read -p "$(echo -e ${G}启用BBR${N} [Y/n]: )" BBR
+BBR=${BBR:-Y}
+
+# 系统选择
+echo
+echo -e "${Y}选择系统:${N}"
+echo "  1) Debian 13 (默认)"
+echo "  2) Debian 12"
+echo "  3) Ubuntu 24.04"
+echo "  4) Ubuntu 22.04"
+echo "  5) CentOS 9"
+echo "  6) Alpine 3.19"
+read -p "$(echo -e ${G}选择${N} [1]: )" OS_CHOICE
+OS_CHOICE=${OS_CHOICE:-1}
+
+case $OS_CHOICE in
+  1) OS_FLAG="-debian 13" ;;
+  2) OS_FLAG="-debian 12" ;;
+  3) OS_FLAG="-ubuntu 24.04" ;;
+  4) OS_FLAG="-ubuntu 22.04" ;;
+  5) OS_FLAG="-centos 9" ;;
+  6) OS_FLAG="-alpine 3.19" ;;
+  *) OS_FLAG="-debian 13" ;;
+esac
+
+BBR_FLAG=""
+[[ "${BBR,,}" != "n" ]] && BBR_FLAG="--bbr"
+
+# 确认
+echo
+echo -e "${Y}════════ 确认配置 ════════${N}"
+echo -e "  系统:   ${B}${OS_FLAG}${N}"
+echo -e "  主机名: ${B}${MYHOST}${N}"
+echo -e "  SSH端口: ${B}${MYPORT}${N}"
+echo -e "  密码:   ${B}******${N}"
+echo -e "  时区:   ${B}${MYTZ}${N}"
+echo -e "  Swap:   ${B}${MYSWAP}MB${N}"
+echo -e "  BBR:    ${B}${BBR_FLAG:-关闭}${N}"
+echo -e "${Y}══════════════════════════${N}"
+echo
+read -p "$(echo -e ${R}确认重装? 数据将全部丢失!${N} [y/N]: )" CONFIRM
+[[ "${CONFIRM,,}" != "y" ]] && echo "已取消" && exit 0
+
+# 下载并执行
+echo -e "${G}下载 InstallNET.sh ...${N}"
 if command -v wget &>/dev/null; then
-  wget --no-check-certificate -qO "$TMP" "$CORE_URL"
+  wget --no-check-certificate -qO InstallNET.sh \
+    'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh'
 elif command -v curl &>/dev/null; then
-  curl -fsSL -o "$TMP" "$CORE_URL"
+  curl -fsSL -o InstallNET.sh \
+    'https://raw.githubusercontent.com/leitbogioro/Tools/master/Linux_reinstall/InstallNET.sh'
 else
-  echo "错误: 需要 wget 或 curl" && exit 1
+  echo -e "${R}错误: 需要 wget 或 curl${N}" && exit 1
+fi
+chmod a+x InstallNET.sh
+
+echo -e "${G}开始重装...${N}"
+bash InstallNET.sh $OS_FLAG \
+  -port "$MYPORT" \
+  -pwd "$MYPWD" \
+  -hostname "$MYHOST" \
+  -timezone "$MYTZ" \
+  -swap "$MYSWAP" \
+  $BBR_FLAG
+
+# 修复 GRUB timeout
+GRUB_CFG="/boot/grub/grub.cfg"
+if [ -f "$GRUB_CFG" ]; then
+  if ! grep -q "^set timeout=" "$GRUB_CFG"; then
+    sed -i '/^set default=/a set timeout=5' "$GRUB_CFG"
+    echo -e "${G}已添加 GRUB timeout=5${N}"
+  fi
 fi
 
-chmod +x "$TMP"
-exec bash "$TMP"
+echo
+echo -e "${Y}重装完成，10秒后自动重启...${N}"
+for i in $(seq 10 -1 1); do
+  echo -ne "\r${R}${i}${N} 秒后重启... (Ctrl+C 取消)"
+  sleep 1
+done
+echo
+reboot