在 VM 上更新后，我应该为“GRUB 安装设备”选择什么？

Question

这与更新后我为“GRUB 安装设备”选择什么几乎完全相同？- 或者可能不是，因此问，因为我通过 Vagrant 在 Virtualbox 机器上运行 Ubuntu。

我无法更新包，所以我跑了sudo apt-get update那么sudo apt-get dist-upgrade。它出现了以下消息：

The GRUB boot loader was previously installed to a disk that is no longer present, or whose unique identifier has changed for some reason. It is        ? 
 ? important to make sure that the installed GRUB core image stays in sync with GRUB modules and grub.cfg. Please check again to make sure that GRUB is    ? 
 ? written to the appropriate boot devices.                                                                                                                ? 
 ?                                                                                                                                                         ? 
 ? If you're unsure which drive is designated as boot drive by your BIOS, it is often a good idea to install GRUB to all of them.                          ? 
 ?                                                                                                                                                         ? 
 ? Note: it is possible to install GRUB to partition boot records as well, and some appropriate partitions are offered here. However, this forces GRUB to  ? 
 ? use the blocklist mechanism, which makes it less reliable, and therefore is not recommended.                                                            ? 
 ?                                                                                                                                                         ? 
 ? GRUB install devices:                                                                                                                                   ? 
 ?                                                                                                                                                         ? 
 ?    [ ] /dev/sda (85899 MB; VBOX_HARDDISK)                                                                                                               ? 
 ?    [ ] - /dev/sda1 (254 MB; /boot)                                                                                                                      ? 
 ?    [ ] /dev/dm-0 (84833 MB; precise64-root) 

我猜第一个选项是正确的，正如另一个问题的答案所说，但我不喜欢猜测！我真的很感激任何帮助或见解。

Answer 1

假设您没有使用 UEFI，我认为您没有理由使用 UEFI。还假设您最初没有以某种花哨的方式设置它，那么是的，第一个选项是正确的。通过选择 /dev/sda，它将被安装到 /dev/sda 的 MBR，BIOS 应该能够启动它。