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Continue to ChatUbuntu 18.04 initramfs更新時に挙がったエラーをこつこつ解決 https://servercan.net/blog/2020/10/ubuntu-18-04-initramfs%e6%9b%b4%e6%96%b0%e6%99%82%e3%81%ab%e6%8c%99%e3%81%8c%e3%81%a3%e3%81%9f%e3%82%a8%e3%83%a9%e3%83%bc%e3%82%92%e3%81%93%e3%81%a4%e3%81%93%e3%81%a4%e8%a7%a3%e6%b1%ba/