DragonOS/tools/write_disk_image.sh

ARCH="x86_64"
# 内核映像
root_folder=$(dirname $(pwd))
kernel="${root_folder}/bin/kernel/kernel.elf"
boot_folder="${root_folder}/bin/disk_mount/boot"

echo "开始写入磁盘镜像..."


# toolchain
OS=`uname -s`
if [ "${OS}" == "Linux" ]; then
    GRUB_PATH="$(dirname $(which grub-file))"
elif [ "${OS}" == "Darwin" ]; then
    GRUB_PATH="${root_folder}/tools/grub-2.06/build/grub/bin"
fi
export PATH="${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

# 拷贝程序到硬盘
# 判断是否存在硬盘镜像文件，如果不存在，就创建一个(docker模式下，由于镜像中缺少qemu-img不会创建)
if [ ! -f "${root_folder}/bin/disk.img" ]; then
    echo "创建硬盘镜像文件..."
    sudo bash ./create_hdd_image.sh
fi

mkdir -p ${root_folder}/bin/disk_mount
bash mount_virt_disk.sh || exit 1
mkdir -p ${boot_folder}/grub
cp ${kernel} ${root_folder}/bin/disk_mount/boot
# 拷贝用户程序到磁盘镜像
mkdir -p ${root_folder}/bin/disk_mount/bin
mkdir -p ${root_folder}/bin/disk_mount/dev

cp -r ${root_folder}/bin/user/* ${root_folder}/bin/disk_mount/bin
touch ${root_folder}/bin/disk_mount/dev/keyboard.dev

# 设置 grub 相关数据
if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then
    
    touch ${root_folder}/bin/disk_mount/boot/grub/grub.cfg
cfg_content='set timeout=15
    set default=0
    menuentry "DragonOS" {
    multiboot2 /boot/kernel.elf "KERNEL_ELF"
}'
echo "echo '${cfg_content}' >  ${boot_folder}/grub/grub.cfg" | sh
fi

# rm -rf ${iso_folder}
LOOP_DEVICE=$(lsblk | grep disk_mount|sed 's/.*\(loop[0-9]*\)p1.*/\1/1g'|awk 'END{print $0}')
echo $LOOP_DEVICE

grub-install --target=i386-pc --boot-directory=${root_folder}/bin/disk_mount/boot/ /dev/$LOOP_DEVICE

sync
bash umount_virt_disk.sh