diff --git a/02_build_img.sh b/02_build_img.sh
index d42ef73..66d71e7 100755
--- a/02_build_img.sh
+++ b/02_build_img.sh
@@ -16,21 +16,12 @@
 #
 #----------------------------------------------
 echo "${CYAN}--- build disk --- ${NC}"
-# 创建磁盘 64M
+# 创建磁盘 128M 或 256M
 if [ "${with_gcc}" = false ]; then
-  dd if=/dev/zero of=disk.img bs=1M count=128
+  create_disk disk.img 128
 else
-  dd if=/dev/zero of=disk.img bs=1M count=256
+  create_disk disk.img 256
 fi
-# 对磁盘进行分区一个主分区
-fdisk disk.img << EOF
-n
-p
-
-
-
-w
-EOF
 echo "${GREEN}+++ build disk ok +++${NC}"
 
 # 磁盘镜像挂载到具体设备
diff --git a/common.sh b/common.sh
index c659d0c..1700a96 100755
--- a/common.sh
+++ b/common.sh
@@ -74,3 +74,21 @@ ls_dir() {
   done
 }
 
+# 创建一个磁盘文件并分区
+create_disk() {
+# 输入参数磁盘文件和大小
+disk=$1
+size=$2
+# 创建一个磁盘文件
+dd if=/dev/zero of=${disk} bs=1M count=${size}
+
+# 对磁盘进行分区一个主分区
+fdisk ${disk} << EOF
+n
+p
+
+
+
+w
+EOF
+}
diff --git a/mk_sdb.sh b/mk_sdb.sh
index cdb0024..17cacbb 100755
--- a/mk_sdb.sh
+++ b/mk_sdb.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+# 导入公共环境
+. ./common.sh
+
 #----------------------------------------------
 #
 # 制作磁盘
@@ -13,18 +16,7 @@ fi
 echo "${CYAN}开始制作磁盘...${NC}"
 
 # 创建磁盘 64M
-dd if=/dev/zero of=extra.img bs=1M count=64
-
-# 对磁盘进行分区一个主分区
-fdisk extra.img << EOF
-n
-p
-
-
-
-w
-EOF
-
+create_disk extra.img 64
 echo "${GREEN}磁盘制作成功!!!${NC}"
 echo ".........................................................."
 
diff --git a/mk_xfce.sh b/mk_xfce.sh
index b6e86d1..47d57fe 100755
--- a/mk_xfce.sh
+++ b/mk_xfce.sh
@@ -420,7 +420,7 @@ ms_link="-Wl,-rpath-link=${xfce_loc_lib}"
 
   # 编译 pixman
   if [ ! -f .pixman ]; then
-    echo "${CYAN}build pixman begin${NC}" && cd ${PIXMAN_SRC_DIR} && ./configure ${CFGOPT} --enable-gtk=no
+    echo "${CYAN}build pixman begin${NC}" && cd ${PIXMAN_SRC_DIR} && ./configure ${CFGOPT} --enable-libpng=yes
     make -j8 && make install DESTDIR=${xfce_install} && echo "ok" > ../.pixman || exit
     cd .. && echo "${GREEN}build pixman end${NC}"
   fi
@@ -742,9 +742,12 @@ if [ "${with_xfce_test}" = true ]; then
   echo "xfce4-session" > ~/.xsession
 
   # xfdesktop 需要库的路径, xfdesktop 不能运行，基本上桌面就是黑屏了，可能有 dock 栏和最上面的状态栏
-  echo "/root/test/a/usr/lib" > /etc/ld.so.conf.d/xfce4.conf
-  echo "/root/test/a/usr/local/lib" >> /etc/ld.so.conf.d/xfce4.conf
-  echo "/root/test/a/usr/lib/x86_64-linux-gnu" >> /etc/ld.so.conf.d/xfce4.conf
+  # echo "/root/test/a/usr/lib" > /etc/ld.so.conf.d/xfce4.conf
+  # echo "/root/test/a/usr/local/lib" >> /etc/ld.so.conf.d/xfce4.conf
+  # echo "/root/test/a/usr/lib/x86_64-linux-gnu" >> /etc/ld.so.conf.d/xfce4.conf
+  libdir=`pwd`"/a/usr"
+  echo "XDG_CONFIG_HOME=\"/usr/local/etc/xdg\"" >> /etc/environment
+  echo "LD_LIBRARY_PATH=\"${libdir}/lib:${libdir}/local/lib:${libdir}/lib/x86_64-linux-gnu\"" >> /etc/environment
 
   # 重启系统，然后可以利用 windows 下 remote desktop 体验最新版本的 xfce4 了, 最新版本的 xfce4 还是很漂亮的
   # reboot