関連ワード:  linux mint grub install failed    linux mint grub install error cannot find efi directory    linux mint grub install error    linux mint executing grub install failed    linux mint 22 grub install failed    linux mint grub install dev sda failed    linux mint grub install fatal error    linux mint executing grub install dev nvme0n1 failed    linux mint grub boot loader failed to install    linux mint executing grub install failed this is a fatal error