Comment 8 for bug 1466150

The bug is still reproducible in 16.04.2LTS. It is particularly funny that the grub-install reports no errors in the end:

...
grub-install: info: copying `/usr/lib/shim/shimx64.efi.signed' -> `/boot/efi/EFI/Ubuntu/shimx64.efi'.
grub-install: info: copying `/usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed' -> `/boot/efi/EFI/Ubuntu/grubx64.efi'.
grub-install: info: copying `/usr/lib/shim/mmx64.efi.signed' -> `/boot/efi/EFI/Ubuntu/mmx64.efi'.
grub-install: info: copying `/usr/lib/shim/fbx64.efi.signed' -> `/boot/efi/EFI/Ubuntu/fbx64.efi'.
grub-install: info: copying `/boot/grub/x86_64-efi/load.cfg' -> `/boot/efi/EFI/Ubuntu/grub.cfg'.
grub-install: info: Registering with EFI: distributor = `Ubuntu', path = `\EFI\Ubuntu\shimx64.efi', ESP at mduuid/37a190814f3ecd3b3eba8b653989e9c1.
grub-install: info: executing efibootmgr --version </dev/null >/dev/null.
grub-install: info: executing modprobe -q efivars.
grub-install: info: executing efibootmgr -c -d.
efibootmgr: option requires an argument -- 'd'
efibootmgr version 0.12
usage: efibootmgr [options]
 -a | --active sets bootnum active
 -A | --inactive sets bootnum inactive
 -b | --bootnum XXXX modify BootXXXX (hex)
 -B | --delete-bootnum delete bootnum (hex)
 -c | --create create new variable bootnum and add to bootorder
 -C | --create-only create new variable bootnum and do not add to bootorder
 -D | --remove-dups remove duplicate values from BootOrder
 -d | --disk disk (defaults to /dev/sda) containing loader
 -e | --edd [1|3|-1] force EDD 1.0 or 3.0 creation variables, or guess
 -E | --device num EDD 1.0 device number (defaults to 0x80)
 -g | --gpt force disk with invalid PMBR to be treated as GPT
 -i | --iface name create a netboot entry for the named interface
 -l | --loader name (defaults to \EFI\redhat\grub.efi)
 -L | --label label Boot manager display label (defaults to "Linux")
 -n | --bootnext XXXX set BootNext to XXXX (hex)
 -N | --delete-bootnext delete BootNext
 -o | --bootorder XXXX,YYYY,ZZZZ,... explicitly set BootOrder (hex)
 -O | --delete-bootorder delete BootOrder
 -p | --part part (defaults to 1) containing loader
 -q | --quiet be quiet
 -t | --timeout seconds set boot manager timeout waiting for user input.
 -T | --delete-timeout delete Timeout.
 -u | --unicode | --UCS-2 pass extra args as UCS-2 (default is ASCII)
 -v | --verbose print additional information
 -V | --version return version and exit
 -w | --write-signature write unique sig to MBR if needed
 -@ | --append-binary-args file append extra args from file (use "-" for stdin)
 -h | --help show help/usage
Installation finished. No errors reported.