我有多个运行 Ubuntu 18.04.5 LTS 的服务器。运行apt-get update后后，我在每台服务器上都收到此错误。
\nSetting up grub-efi-amd64 (2.04-1ubuntu44) ...\n\nCreating config file /etc/default/grub with new version\nInstalling for x86_64-efi platform.\ngrub-install: error: cannot find EFI directory.\nFailed: grub-install --target=x86_64-efi \nWARNING: Bootloader is not properly installed, system may not be bootable\nSetting up grub-efi-amd64-signed (1.167~18.04.1+2.04-1ubuntu44) ...\nInstalling for x86_64-efi platform.\ngrub-install: error: cannot find EFI directory.\ndpkg: error processing package grub-efi-amd64-signed (--configure):\n installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1\nSetting up grub-efi (2.02-2ubuntu8.23) ...\nProcessing triggers for install-info (6.5.0.dfsg.1-2) ...\nProcessing triggers for …