https://blog.csdn.net/humanof/article/details/100726977
https://blog.csdn.net/liu5320102/article/details/54846426
boot.img靠硬编码找到core.img,core.img可以识别文件系统,其会找到/boot/grub/grub.cfg,然后读取操作系统列表。我只能这么理解了。
https://blog.csdn.net/humanof/article/details/100726977
https://blog.csdn.net/liu5320102/article/details/54846426