diff --git a/pdf/rk3588_guide.pdf b/pdf/rk3588_guide.pdf
index a26f835..d3eb8f2 100644
Binary files a/pdf/rk3588_guide.pdf and b/pdf/rk3588_guide.pdf differ
diff --git a/rk3588_guide.tex b/rk3588_guide.tex
index 7a66a22..f8837c4 100644
--- a/rk3588_guide.tex
+++ b/rk3588_guide.tex
@@ -245,4 +245,4 @@
 % mode: latex
 % TeX-engine: xelatex
 % TeX-master: t
-% End:
\ No newline at end of file
+% End:
diff --git a/tex/openeuler.tex b/tex/openeuler.tex
index f5c92d2..f303c59 100644
--- a/tex/openeuler.tex
+++ b/tex/openeuler.tex
@@ -3,14 +3,14 @@
 
 \section{准备安装环境}
 \begin{enumerate}[(1)]
-    \item 下载 rpi 的 openEuler 系统镜像文件
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 下载 rpi 的 openEuler 系统镜像文件
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 curl -O http://repo.openeuler.org/openEuler-24.03-LTS/raspi_img/\
     openEuler-24.03-LTS-raspi-aarch64.img.xz
 xz -d openEuler-24.03-LTS-raspi-aarch64.img.xz
 \end{minted}
-    \item  准备 aarch64 的系统：
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item  准备 aarch64 的系统：
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 sudo losetup -P /dev/loop0 openEuler-24.03-LTS-raspi-aarch64.img
 sudo mount /dev/loop0p3 /media
 mkdir rpi
@@ -19,27 +19,27 @@ sudo umount /media
 sudo losetup -d /dev/loop0
 sudo cp /usr/bin/qemu-aarch64-static rpi/usr/bin
 \end{minted}
-   \item 切换到安装环境
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 切换到安装环境
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 sudo mount --bind /dev rpi/dev
 sudo mount --bind /dev/pts rpi/dev/pts
 sudo mount -t proc proc rpi/proc
 sudo mount -t sysfs sys rpi/sys
 sudo chroot rpi /usr/bin/qemu-aarch64-static /bin/bash -i
 \end{minted}
-   \item 编辑 /etc/resolv.conf
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 编辑 /etc/resolv.conf
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 nameserver 8.8.8.8
 nameserver 114.114.114.114
 \end{minted}
-    \item 安装依赖包
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 安装依赖包
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 dnf makecache
 dnf install git wget make gcc bison dtc m4 flex bc openssl-devel \
     tar dosfstools rsync parted dnf-plugins-core tar
 \end{minted}
-    \item 创建工作目录
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 创建工作目录
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 export WORKDIR=/root/build
 mkdir -p $WORKDIR
 cd $WORKDIR
@@ -260,27 +260,27 @@ ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 
 \subsection{安装 xfce4 桌面系统 (可选)}
 \begin{enumerate}[(1)]
-    \item 安装软件
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 安装软件
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 dnf install -y dejavu-fonts liberation-fonts gnu-*-fonts wqy-zenhei-fonts
 dnf install -y xorg-*
 dnf install -y xfwm4 xfdesktop xfce4-* xfce4-*-plugin 
 dnf install -y lightdm lightdm-gtk
 \end{minted}
-    \item 设置默认桌面为XFCE 启动
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 设置默认桌面为XFCE 启动
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 echo 'user-session=xfce' >> /etc/lightdm/lightdm.conf.d/\
     60-lightdm-gtk-greeter.conf
 echo 'autologin-user=euler' >> /etc/lightdm/lightdm.conf.d/\
     60-lightdm-gtk-greeter.conf
 \end{minted}
-    \item 设置开机自启动图形界面
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 设置开机自启动图形界面
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 systemctl enable lightdm
 systemctl set-default graphical.target
 \end{minted}
-    \item 添加 /etc/X11/xorg.conf.d/20-modesetting.conf 文件，内容如下：
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 添加 /etc/X11/xorg.conf.d/20-modesetting.conf 文件，内容如下：
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 Section "Device"
     Identifier  "Rockchip Graphics"
     Driver      "modesetting"
@@ -326,25 +326,25 @@ EndSection
 ukui 是麒麟软件团队历经多年打造的一款Linux 桌面，主要基于 GTK 和 QT开发。与其他UI界面相比，ukui更加注重易用性和敏捷度，各元件相依性小，可以不依赖其他套件而独自运行，给用户带来亲切和高效的使用体验。
 
 \begin{enumerate}[(1)]
-    \item 安装 ukui
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 安装 ukui
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 dnf install -y dejavu-fonts liberation-fonts gnu-*-fonts wqy-zenhei-fonts
 dnf install ukui
 \end{minted}
-    \item 配置允许root登陆
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 配置允许root登陆
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 echo "greeter-show-manual-login=true" >> /usr/share/lightdm/lightdm.conf.d/\
     95-ukui-greeter.conf
 echo "all-guest=false" >> /usr/share/lightdm/lightdm.conf.d/\
     95-ukui-greeter.conf
 \end{minted}
-    \item 配置 euler 用户自动登陆
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 配置 euler 用户自动登陆
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 echo "autologin-user=euler" >> /usr/share/lightdm/lightdm.conf.d/\
     95-ukui-greeter.conf
 \end{minted}
-    \item 添加 /etc/X11/xorg.conf.d/20-modesetting.conf 文件，内容如下：
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 添加 /etc/X11/xorg.conf.d/20-modesetting.conf 文件，内容如下：
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 Section "Device"
     Identifier  "Rockchip Graphics"
     Driver      "modesetting"
@@ -383,12 +383,12 @@ Section "Monitor"
     Option      "Rotate" "normal"
 EndSection
 \end{minted}
-    \item 切换用户界面（GUI）模式
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 切换用户界面（GUI）模式
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 systemctl set-default graphical.target
 \end{minted}
-   还原到文本模式，用下面命令：
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	      还原到文本模式，用下面命令：
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 systemctl set-default multi-user.target
 \end{minted}
 \end{enumerate}
@@ -411,18 +411,18 @@ umount -l $WORKDIR/rootfs/sys
 
 \section{制作镜像}
 \begin{enumerate}[(1)]
-\item 计算镜像容量
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 计算镜像容量
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 IMAGE_SIZE_MB=$(( $(sudo du -sh -m $WORKDIR/rootfs | cut -f1) + 300 ))
 \end{minted}
 
-\item 创建镜像文件
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 创建镜像文件
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 dd if=/dev/zero of=rootfs.img bs=1M count=0 seek=${IMAGE_SIZE_MB}
 \end{minted}
 
-\item 格式化镜像
-\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+	\item 格式化镜像
+	      \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 mkfs.ext4 -d $WORKDIR/rootfs rootfs.img
 \end{minted}
 \end{enumerate}
@@ -440,7 +440,7 @@ sudo umount -l rpi/sys
 \chapter{构建 openEuler Embedded}
 参考这里 \url{https://embedded.pages.openeuler.org/master/introduction/index.html}，把主要步骤记录一下。
 \section{系统安装 docker }
-用 root 权限执行下面的命令：
+\noindent 用 root 权限执行下面的命令：
 \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 groupadd docker
 usermod -a -G docker user
@@ -449,19 +449,66 @@ systemctl restart docker
 chmod o+rw /var/run/docker.sock
 \end{minted}
 
-\section{安装 oebuild}
+\section{准备 oebuild 安装环境}
+\subsection{安装 oebuild}
+\noindent 执行以下命令：
 \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 pip3 install oebuild
 \end{minted}
 
-\section{制作 Rk3588 镜像和 SDK}
+\subsection{创建安装目录}
+\noindent 执行以下命令：
 \begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
 oebuild init yocto-oebuild -b openEuler-24.03-LTS
 cd yocto-oebuild
 oebuild update
 oebuild update docker
-oebuild generate -p ok3588 -f systemd -f openeuler-qt
-cd build/ok3588
+oebuild generate -p ok3588 -d rk3588 -f systemd
+\end{minted}
+
+\section{制作 Rk3588 镜像和 SDK}
+
+\subsection{添加客户要求软件}
+编辑 ``build/rk3588/compile.yaml'' ， 在 ``local.conf:'' 下面添加必要软件，如下示例：
+\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+local_conf: |
+  INIT_MANAGER = "systemd"
+  VIRTUAL-RUNTIME_dev_manager = "systemd"
+  IMAGE_INSTALL:append = "tcpdump ethtool iperf2 bridge-utils minicom"
+
+  PREFERRED_PROVIDER_virtual/kernel ?= "linux-openeuler"
+\end{minted}
+
+其中 ``IMAGE\_INSTALL:append'' 是新增的内容。
+
+\subsection{编译镜像文件}
+\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+cd build/rk3588
 oebuild bitbake openeuler-image
 oebuild bitbake openeuler-image -c do_populate_sdk
 \end{minted}
+
+\subsection{问题处理}
+
+\begin{enumerate}[(1)]
+    \item {ERROR - ERROR: tcpdump-4.99.3-r0 do\_fetch: Bitbake Fetcher Error: FetchError(`Unable to fetch URL from any source.', `file://tcpdump-4.99.3.tar.gz')}
+
+    先用下面命令下载文件：
+\begin{minted}[bgcolor=lightgray!30,fontsize=\scriptsize]{bash}
+cd yocto-oebuild/src/yocto-meta-openembedded/meta-networking/\
+    recipes-support/tcpdump/tcpdump
+wget -c http://www.tcpdump.org/release/tcpdump-4.99.3.tar.gz
+wget -c https://gitee.com/src-openeuler/tcpdump/raw/master/\
+    backport-0002-Use-getnameinfo-instead-of-gethostbyaddr.patch
+wget -c https://gitee.com/src-openeuler/tcpdump/raw/master/\
+    backport-0007-Introduce-nn-option.patch
+wget -c https://gitee.com/src-openeuler/tcpdump/raw/master/\
+    backport-0009-Change-n-flag-to-nn-in-TESTonce.patch
+\end{minted}
+
+然后修改 ``\texttt{yocto-oebuild/src/yocto-meta-openeuler/meta-\\%
+openeuler/dynamic-layers/networking-layer/recipes-support\\%
+/tcpdump/tcpdump\_\%.bbappend}'' 文件中的 ``SRC\_URI[md5sum]'' 和 
+``SRC\_URI[md5sum]''。
+
+\end{enumerate}