これは、更新後に「GRUB install devices」に何を選択するのとほぼ同じですか?-または、Vagrantを介してVirtualboxマシンでUbuntuを実行しているので、おそらくそうではありません。
パッケージを更新できなかったので、実行しsudo apt-get update
ましたsudo apt-get dist-upgrade
。次のメッセージが表示されました。
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)
私は、他の質問への答えが言うように、最初のオプションが正しいものであると推測していますが、推測は好きではありません!どんな助けや洞察にも本当に感謝しています。