[Bug 1936717] Re: Grub upgrade error (Ubuntu 18.04.05)

[Dave]

Just to add, I have since gotten around to rebooting the machines and
they did come back up, so at least my fix is working.

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Title:
  Grub upgrade error (Ubuntu 18.04.05)

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I have initially been trying to resolve this on the forums
  (https://ubuntuforums.org/showthread.php?t=2461875) but have now been
  advised to report here as a bug

  I have two Ubuntu 18.04 servers in a remote location, a month or so
  ago after running the normal "apt update" and "apt upgrade" commands I
  was faced with the error shown in the attached document.

  After further reading I ran the command sudo grub-install --efi-
  directory=/boot/efi --target=x86_64-efi --no-nvram and it says
  "Installation Finished. No error reported." however anytime I run apt
  for anything it tries again to install grub-efi-amd64 / grub-efi-
  amd64-signed and results in the same error.

  
  Here is output from the df command

  Filesystem      Size  Used Avail Use% Mounted on
  udev             16G     0   16G   0% /dev
  tmpfs           3.2G  952K  3.2G   1% /run
  /dev/md4         29T   29T  117G 100% /
  tmpfs            16G   16K   16G   1% /dev/shm
  tmpfs           5.0M     0  5.0M   0% /run/lock
  tmpfs            16G     0   16G   0% /sys/fs/cgroup
  /dev/md2        477M  169M  279M  38% /boot
  /dev/md1        300M  3.3M  297M   2% /boot/efi
  tmpfs           3.2G     0  3.2G   0% /run/user/1000

  
  I have not risked rebooting the machines so I do not know if the above command is actually leaving the machine in a bootable state or not.

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