用光盘安装的时候貌似只有sda选项，没有sda1、2、3等选项（ubuntu就可以选的）
如果不安装grub，进入系统时该如何安装？谢谢！
刚刚折腾一下，出错了（在ubuntu行在arch不行）
sudo grub-install --root-directory=/ /dev/sda1
Installation finished. No error reported.
This is the contents of the device map //boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install'.
(fd0) /dev/fd0
(hd0) /dev/sda
今天wiki怎么进不去了
