🆕 切换为grub2引导，能进入Start_Kernel函数（未能完成初始化）

run.sh

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+# ======检查是否以sudo运行=================
+#uid=`id -u`
+#if [ ! $uid == "0" ];then
+#  echo "请以sudo权限运行"
+#  exit
+#fi
+
+# 第一个参数如果是--notbuild 那就不构建，直接运行
+if [ ! "$1" == "--nobuild" ]; then
+    echo "开始构建..."
+    make all -j 16
+    make clean
+fi
+
+IA32_USE_QEMU=1
+bochsrc="./bochsrc"
+ARCH="x86_64"
+
+# 内核映像
+kernel='./bin/kernel/kernel.elf'
+iso_boot_grub='./iso/boot/grub'
+iso_boot='./iso/boot/'
+iso='./DragonOS.iso'
+iso_folder='./iso/'
+
+
+# toolchain
+OS=`uname -s`
+if [ "${OS}" == "Linux" ]; then
+    GRUB_PATH="$(dirname $(which grub-file))"
+elif [ "${OS}" == "Darwin" ]; then
+    GRUB_PATH="$(pwd)/tools/grub-2.04/build/grub/bin"
+fi
+export PATH="${GRUB_PATH}:$PATH"
+
+# ==============检查文件是否齐全================
+
+
+bins[0]=${kernel}
+
+for file in ${bins[*]};do
+if [ ! -x $file ]; then
+  echo "$file 不存在！"
+  exit
+  fi
+done
+
+# ===============文件检查完毕===================
+
+# 如果是 i386/x86_64，需要判断是否符合 multiboot2 标准
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+    if ${GRUB_PATH}/grub-file --is-x86-multiboot2 ${kernel}; then
+        echo Multiboot2 Confirmed!
+    else
+        echo NOT Multiboot2!
+        exit
+    fi
+fi
+# 检测路径是否合法，发生过 rm -rf -f /* 的惨剧
+if [ "${iso_boot}" == "" ]; then
+    echo iso_boot path error.
+else
+    mkdir -p ${iso_boot}
+    rm -rf -f ${iso_boot}/*
+fi
+
+# 设置 grub 相关数据
+if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
+    cp ${kernel} ${iso_boot}
+    mkdir ${iso_boot_grub}
+    touch ${iso_boot_grub}/grub.cfg
+    echo 'set timeout=15
+    set default=0
+    menuentry "DragonOS" {
+       multiboot2 /boot/kernel.elf "KERNEL_ELF"
+   }' >${iso_boot_grub}/grub.cfg
+fi
+
+${GRUB_PATH}/grub-mkrescue -o ${iso} ${iso_folder}
+rm -rf ${iso_folder}
+# 进行启动前检查
+flag_can_run=0
+
+if [ -d "${iso_folder}" ]; then
+  flag_can_run=0
+  echo "${iso_folder} 文件夹未删除！"
+else
+  flag_can_run=1
+fi
+
+if [ $flag_can_run -eq 1 ]; then
+  if [ ${IA32_USE_QEMU} == 0 ]; then
+        bochs -q -f ${bochsrc} -rc ./tools/bochsinit
+    else
+        qemu-system-x86_64 -cdrom ${iso} -m 128M \
+        -monitor telnet::2333,server,nowait -serial stdio
+    fi
+else
+  echo "不满足运行条件"
+fi