package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

[Nathalie Côté]

upgrade

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-83.106-generic 4.4.70
Uname: Linux 4.4.0-83-generic x86_64
.proc.sys.kernel.moksbstate_disabled: 0
ApportVersion: 2.20.1-0ubuntu2.13
Architecture: amd64
BootEFIContents:
 fw
 fwupx64.efi
Date: Wed Nov 22 16:10:22 2017
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
InstallationDate: Installed on 2017-01-15 (311 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SecureBoot: 6 0 0 0 0
SourcePackage: shim-signed
Title: package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
UpgradeStatus: Upgraded to xenial on 2017-01-17 (309 days ago)

[Steve Langasek (vorlon)]

The error in the log is:

Installation pour la plate-forme x86_64-efi
grub-install : erreur : impossible de trouver le répertoire EFI.
dpkg: erreur de traitement du paquet grub-efi-amd64-signed (--configure) :
 le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

Do you know why /boot/efi is not mounted on your system? Please attach your /etc/fstab file.

[Nathalie Côté (cote.nathalie2)]

Here is the file.
I don't know why /boot/efi is not mounted.
I have ubuntu and swap and the boot EFI and windows on sdb.
This is a profesional computer that I received with windows already install on it

[Launchpad Janitor (janitor)]

[Expired for shim-signed (Ubuntu) because there has been no activity for 60 days.]