diff --git a/README.md b/README.md
index 34743a2..7f713d2 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
 # 介绍与快速入门
 
 > 本文档环境为 `ubuntu 20.04`
->
-> 更多文档请前往 https://club.rt-thread.org/ask/article/1c95a3e1c58c0c25.html
 
 ## 介绍
 
@@ -38,19 +36,7 @@ xmake 是一个基于 Lua 的轻量级跨平台构建工具，使用 xmake.lua 
    sudo apt install xmake
    ```
 
-3. **安装 qemu**
-
-   userapps 已提供 qemu 7.1.0 的安装包，请自行下载 https://download-redirect.rt-thread.org/download/rt-smart/native/tools/qemu/qemu_7.1.0-2022111713_amd64.deb
-
-   ```shell
-   sudo apt-get install -y libglib2.0-dev libpixman-1-dev
-   curl -L https://download-redirect.rt-thread.org/download/rt-smart/native/tools/qemu/qemu_7.1.0-2022111713_amd64.deb -o ./qemu.deb
-   sudo dpkg -i ./qemu.deb
-   ```
-
-   如若想安装最新版本，请自行下载 qemu 源码进行编译安装
-
-4. **编译**
+3. **编译**
 
    由于 smart 采用 xmake 编译用户态环境，因此 smart 的编译方式非常简单。
 
@@ -70,30 +56,17 @@ xmake 是一个基于 Lua 的轻量级跨平台构建工具，使用 xmake.lua 
 
    ![image-20230531173059551](./assets/image-20230531173059551.png)
 
-5. **镜像制作**
+4. **镜像制作**
 
    运行 `xmake smart-rootfs` 制作 rootfs ，运行 `xmake smart-image` 制作镜像
 
    ```shell
    xmake smart-rootfs
-   xmake smart-image -o ../prebuilt/qemu-virt64-aarch64/ext4.img # 将镜像输出至 qemu-virt64-aarch64 目录
+   xmake smart-image -f ext4 #制作 ext4 镜像
    ```
 
    ![image-20230531173829621](./assets/image-20230531173829621.png)
 
-6. **运行 qemu**
-
-   进入 `userapp/prebuilt/qemu-virt64-aarch64`，运行 qemu.sh 脚本启动 qemu
-
-   ```shell
-   cd prebuilt/qemu-virt64-aarch64/
-   ./run.sh
-   ```
-
-   ![image-20230531174321326](./assets/image-20230531174321326.png)
-
-   在 qemu 中 输入 `ctrl+a` 抬起后，再输入 `x` 即可退出 qemu
-
 ## prebuilt 的版本
 
 会在每天凌晨生成 aarch64/riscv64 for qemu 的 prebuilt 版本，包括内核和 rootfs 文件系统：
diff --git a/assets/image-20230531174321326.png b/assets/image-20230531174321326.png
deleted file mode 100644
index a44438b..0000000
Binary files a/assets/image-20230531174321326.png and /dev/null differ
diff --git a/prebuilt/qemu-virt64-aarch64/ext4.img b/prebuilt/qemu-virt64-aarch64/ext4.img
deleted file mode 100644
index 03e168d..0000000
Binary files a/prebuilt/qemu-virt64-aarch64/ext4.img and /dev/null differ
diff --git a/prebuilt/qemu-virt64-aarch64/rtthread.bin b/prebuilt/qemu-virt64-aarch64/rtthread.bin
deleted file mode 100755
index 9466317..0000000
Binary files a/prebuilt/qemu-virt64-aarch64/rtthread.bin and /dev/null differ
diff --git a/prebuilt/qemu-virt64-aarch64/run.sh b/prebuilt/qemu-virt64-aarch64/run.sh
deleted file mode 100755
index 980a451..0000000
--- a/prebuilt/qemu-virt64-aarch64/run.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/bash
-
-# @author      xqyjlj  
-# @file        run.sh
-#
-# Change Logs:
-# Date           Author       Notes
-# ------------   ----------   -----------------------------------------------
-# 2023-01-12     xqyjlj       initial version
-#
-
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-qemu-system-aarch64 \
-    -M virt,gic-version=2 \
-    -cpu cortex-a53 \
-    -m 128M \
-    -kernel ${script_dir}/rtthread.bin \
-    -nographic \
-    -drive if=none,file=${script_dir}/ext4.img,format=raw,id=blk0 \
-    -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 \
-    -netdev user,id=net0,hostfwd=tcp::8080-:80 \
-    -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1 \
-    -device virtio-serial-device \
-    -chardev socket,host=127.0.0.1,port=43211,server=on,wait=off,telnet=on,id=console0 \
-    -device virtserialport,chardev=console0
diff --git a/prebuilt/qemu-virt64-aarch64/run_debug.sh b/prebuilt/qemu-virt64-aarch64/run_debug.sh
deleted file mode 100755
index 432e70e..0000000
--- a/prebuilt/qemu-virt64-aarch64/run_debug.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-
-# @author      xqyjlj  
-# @file        run.sh
-#
-# Change Logs:
-# Date           Author       Notes
-# ------------   ----------   -----------------------------------------------
-# 2023-01-12     xqyjlj       initial version
-#
-
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-qemu-system-aarch64 \
-    -M virt,gic-version=2 \
-    -cpu cortex-a53 \
-    -m 128M \
-    -kernel ${script_dir}/rtthread.bin \
-    -nographic \
-    -drive if=none,file=${script_dir}/ext4.img,format=raw,id=blk0 \
-    -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 \
-    -netdev user,id=net0,hostfwd=tcp::8080-:80 \
-    -device virtio-net-device,netdev=net0,bus=virtio-mmio-bus.1 \
-    -device virtio-serial-device \
-    -chardev socket,host=127.0.0.1,port=43211,server=on,wait=off,telnet=on,id=console0 \
-    -device virtserialport,chardev=console0 \
-    -S \
-    -gdb tcp::1234
diff --git a/prebuilt/qemu-virt64-riscv/ext4.img b/prebuilt/qemu-virt64-riscv/ext4.img
deleted file mode 100644
index f7356d1..0000000
Binary files a/prebuilt/qemu-virt64-riscv/ext4.img and /dev/null differ
diff --git a/prebuilt/qemu-virt64-riscv/rtthread.bin b/prebuilt/qemu-virt64-riscv/rtthread.bin
deleted file mode 100755
index c512f90..0000000
Binary files a/prebuilt/qemu-virt64-riscv/rtthread.bin and /dev/null differ
diff --git a/prebuilt/qemu-virt64-riscv/run.sh b/prebuilt/qemu-virt64-riscv/run.sh
deleted file mode 100755
index 1de4a9b..0000000
--- a/prebuilt/qemu-virt64-riscv/run.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-# @author      xqyjlj  
-# @file        run.sh
-#
-# Change Logs:
-# Date           Author       Notes
-# ------------   ----------   -----------------------------------------------
-# 2023-01-12     xqyjlj       initial version
-#
-
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-qemu-system-riscv64 \
-    -nographic \
-    -machine virt \
-    -m 256M \
-    -kernel ${script_dir}/rtthread.bin \
-    -drive if=none,file=${script_dir}/ext4.img,format=raw,id=blk0 \
-    -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 \
-    -netdev user,id=tap0,hostfwd=tcp::8080-:80 \
-    -device virtio-net-device,netdev=tap0,bus=virtio-mmio-bus.1 \
-    -device virtio-serial-device \
-    -chardev socket,host=127.0.0.1,port=43212,server=on,wait=off,telnet=on,id=console0 \
-    -device virtserialport,chardev=console0
diff --git a/prebuilt/qemu-virt64-riscv/run_debug.sh b/prebuilt/qemu-virt64-riscv/run_debug.sh
deleted file mode 100755
index 4dfcd0f..0000000
--- a/prebuilt/qemu-virt64-riscv/run_debug.sh
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/bin/bash
-
-# @author      xqyjlj  
-# @file        run.sh
-#
-# Change Logs:
-# Date           Author       Notes
-# ------------   ----------   -----------------------------------------------
-# 2023-01-12     xqyjlj       initial version
-#
-
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-qemu-system-riscv64 \
-    -nographic \
-    -machine virt \
-    -m 256M \
-    -kernel ${script_dir}/rtthread.bin \
-    -drive if=none,file=${script_dir}/ext4.img,format=raw,id=blk0 \
-    -device virtio-blk-device,drive=blk0,bus=virtio-mmio-bus.0 \
-    -netdev user,id=tap0,hostfwd=tcp::8080-:80 \
-    -device virtio-net-device,netdev=tap0,bus=virtio-mmio-bus.1 \
-    -device virtio-serial-device \
-    -chardev socket,host=127.0.0.1,port=43212,server=on,wait=off,telnet=on,id=console0 \
-    -device virtserialport,chardev=console0 \
-    -S \
-    -gdb tcp::1234
diff --git a/prebuilt/sha1sum.txt b/prebuilt/sha1sum.txt
deleted file mode 100644
index 6e3b0e3..0000000
--- a/prebuilt/sha1sum.txt
+++ /dev/null
@@ -1 +0,0 @@
-https://github.com/RT-Thread/rt-thread: 3e4797c63c43384825d63166966289bb60b6be78