diff --git a/01_build_src.sh b/01_build_src.sh
deleted file mode 100644
index b480fc5..0000000
--- a/01_build_src.sh
+++ /dev/null
@@ -1,180 +0,0 @@
-#!/bin/sh
-
-core_num=`nproc`
-kernel_install=`pwd`"/work/kernel_install"
-glibc_install=`pwd`"/work/glibc_install"
-busybox_install=`pwd`"/work/busybox_install"
-libgcc_install=`pwd`"/work/libgcc_install"
-binutils_install=`pwd`"/work/binutils_install"
-
-#-----------------------------------------------
-#
-# 重新生成目标文件
-#
-#----------------------------------------------- 
-if [ "$1" != "" ]; then
-  if [ $1 != "rebuild" ]; then
-    exit
-  fi
-  echo "rebuild"
-  cd work
-  rm -rf kernel_install glibc_install busybox_install libgcc_install binutils_install
-  # 编译内核, 最终所有模块都装到目录 /lib/modules/4.14.9
-  if [ ! -d "kernel_install" ]; then
-    mkdir -pv kernel_install && cd linux-4.14.9 
-    make INSTALL_HDR_PATH=${kernel_install} headers_install -j8 && cp arch/x86_64/boot/bzImage ${kernel_install} && cd ..
-  fi
-
-  # 编译glibc
-  if [ ! -d "glibc_install" ]; then
-    mkdir -pv glibc_install && cd glibc-2.32
-    mkdir -pv build && cd build
-    make install -j8 DESTDIR=${glibc_install} && cd .. && cd ..
-  fi
-
-  # 编译 busybox 
-  if [ ! -d "busybox_install" ]; then
-    mkdir -pv busybox_install && cd busybox-1.34.1
-    make CONFIG_PREFIX=${busybox_install} install && cd ..
-  fi
-
-  # 编译 libgcc
-  if [ ! -d "libgcc_install" ]; then
-    mkdir -pv libgcc_install && cd gcc-7.5.0
-    make install -j8 DESTDIR=${libgcc_install} && cd ..
-  fi
-
-  # 编译 binutils
-  if [ ! -d "binutils_install" ]; then
-    mkdir -pv binutils_install && cd binutils-2.36
-    make install -j8 DESTDIR=${binutils_install} && cd ..
-  fi  
-  cd ..
-  exit
-fi
-
-#----------------------------------------------
-#
-# 下载源码
-#
-#----------------------------------------------
-mkdir -pv source
-cd source
-
-#KERNEL_SOURCE_URL=https://kernel.org/pub/linux/kernel/v4.x/linux-4.14.9.tar.xz
-KERNEL_SOURCE_URL=https://mirror.bjtu.edu.cn/kernel/linux/kernel/v4.x/linux-4.14.9.tar.xz
-if [ ! -f "linux-4.14.9.tar.xz" ]; then 
-  wget $KERNEL_SOURCE_URL 
-fi
-
-GLIBC_SOURCE_URL=https://ftp.gnu.org/gnu/glibc/glibc-2.32.tar.bz2
-if [ ! -f "glibc-2.32.tar.bz2" ]; then
-  wget $GLIBC_SOURCE_URL
-fi
-
-BUSYBOX_SOURCE_URL=https://busybox.net/downloads/busybox-1.34.1.tar.bz2
-if [ ! -f "busybox-1.34.1.tar.bz2" ]; then 
-  wget $BUSYBOX_SOURCE_URL 
-fi
-
-GCC_SOURCE_URL=https://ftpmirror.gnu.org/gcc/gcc-7.5.0/gcc-7.5.0.tar.xz
-if [ ! -f "gcc-7.5.0.tar.xz" ]; then 
-  wget $GCC_SOURCE_URL 
-fi
-
-BINUTILS_SOURCE_URL=https://ftp.gnu.org/gnu/binutils/binutils-2.36.tar.xz
-if [ ! -f "binutils-2.36.tar.xz" ]; then
-  wget $BINUTILS_SOURCE_URL
-fi
-
-cd ..
-
-#---------------------------------------------
-#
-# 解压源码 
-#
-#---------------------------------------------
-mkdir -pv work
-
-if [ ! -d "./work/linux-4.14.9" ]; then
-  echo "unzip kernel source"
-  tar xf source/linux-4.14.9.tar.xz -C work/
-fi
-
-if [ ! -d "./work/glibc-2.32" ]; then
-  echo "unzip glibc source"
-  tar xf source/glibc-2.32.tar.bz2 -C work/
-fi
-
-if [ ! -d "./work/busybox-1.34.1" ]; then
-  echo "unzip busybox source"
-  tar xf source/busybox-1.34.1.tar.bz2 -C work/
-fi
-
-if [ ! -d "./work/gcc-7.5.0" ]; then
-  echo "unzip gcc source"
-  tar xf source/gcc-7.5.0.tar.xz -C work/
-fi
-
-if [ ! -d "./work/binutils-2.36" ]; then
-  echo "unzip binutils source"
-  tar xf source/binutils-2.36.tar.xz -C work/
-fi
-
-#---------------------------------------------
-#
-# 编译源码 
-#
-#---------------------------------------------
-cd work
-
-# 编译内核, 最终所有模块都装到目录 /lib/modules/4.14.9
-if [ ! -d "kernel_install" ]; then 
-  mkdir -pv kernel_install && cd linux-4.14.9 && make mrproper
-  # Enable the VESA framebuffer for graphics support.
-  # 网络需要 TUN/TAP 驱动 [ Device Drivers ] ---> [ Network device support ] ---> [ Universal TUN/TAP device driver support ]
-  make x86_64_defconfig && sed -i "s/.*CONFIG_FB_VESA.*/CONFIG_FB_VESA=y/" .config && make bzImage -j8
-  #cd linux-4.14.9 && make x86_64_defconfig && make bzImage -j8 && make modules && make modules_install && cd ..
-  make INSTALL_HDR_PATH=${kernel_install} headers_install -j8 && cp arch/x86_64/boot/bzImage ${kernel_install} && cd ..
-fi
-
-# 编译glibc
-if [ ! -d "glibc_install" ]; then
-  mkdir -pv glibc_install && cd glibc-2.32
-  mkdir -pv build && cd build && make distclean
-  ../configure --prefix= \
-    --with-headers=${kernel_install}/include/ \
-    --without-gd \
-    --without-selinux \
-    --disable-werror
-  make -j8 && make install -j8 DESTDIR=${glibc_install} && cd .. && cd ..
-fi
-
-# 编译 busybox 
-if [ ! -d "busybox_install" ]; then
-  mkdir -pv busybox_install && cd busybox-1.34.1 && make distclean && make defconfig
-  # 静态编译 sed -i "s/# CONFIG_STATIC is not set/CONFIG_STATIC=y/g" .config
-  sed -i "s|.*CONFIG_SYSROOT.*|CONFIG_SYSROOT=\"${glibc_install}\"|" .config
-  sed -i "s|.*CONFIG_EXTRA_CFLAGS.*|CONFIG_EXTRA_CFLAGS=\"$CFLAGS -I${kernel_install}/include -I${glibc_install}/include -L${glibc_install}/lib\"|" .config
-  make busybox -j8 && make CONFIG_PREFIX=${busybox_install} install && cd ..
-fi
-
-# 编译 libgcc
-if [ ! -d "libgcc_install" ]; then 
-  mkdir -pv libgcc_install && cd gcc-7.5.0 && make distclean && rm ./config.cache
-  ./contrib/download_prerequisites
-  ./configure --prefix= --enable-languages=c,c++ --disable-multilib --disable-static --disable-libquadmath --enable-shared
-  CFLAGS="-L${glibc_install}/lib $CFLAGS" make -j8 && make install -j8 DESTDIR=${libgcc_install} && cd ..
-fi
-
-# 编译 binutils
-if [ ! -d "binutils_install" ]; then
-  mkdir -pv binutils_install && cd binutils-2.36 && make distclean
-  ./configure --prefix=
-  CFLAGS="-L${glibc_install}/lib $CFLAGS" make -j8 && make install -j8 DESTDIR=${binutils_install} && cd ..
-  cd ..
-fi
-
-cd ..
-
-echo "Run the next script: 02_build_img.sh"