[Bug 1607817] Re: grub-install: error: cannot find EFI directory: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

Upon closer examination, your report shows that the system *does*
support UEFI: 'efibootmgr' returns a complete list of UEFI boot entries.
But grub-install reports that it can't find the EFI directory, even
though it had just used the same code to install grub-efi-amd64-signed
moments before:

Setting up grub-efi-amd64 (2.02~beta2-36ubuntu3.1) ...
Installing new version of config file /etc/kernel/postinst.d/zz-update-grub ...
Installing new version of config file /etc/kernel/postrm.d/zz-update-grub ...
Generating grub configuration file ...
[...]
Found Windows Boot Manager on /dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for EFI firmware configuration
done
Setting up grub-efi-amd64-signed (1.66.1+2.02~beta2-36ubuntu3.1) ...
[...]
Setting up shim-signed (1.18~16.04.1+0.8-0ubuntu2) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1

Can you show the output of 'mount' on this system, and a directory
listing of /boot/efi?

** Summary changed:

- package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
+ grub-install: error: cannot find EFI directory: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

** Summary changed:

- grub-install: error: cannot find EFI directory: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
+ (14.04->16.04 upgrade) grub-install: error: cannot find EFI directory: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

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https://bugs.launchpad.net/bugs/1607817

Title:
  (14.04->16.04 upgrade) grub-install: error: cannot find EFI directory:
  package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  didn't go through update to 16

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: shim-signed 1.18~16.04.1+0.8-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  BootEFIContents:
   fw
   fwupx64.efi
  Date: Fri Jul 29 16:35:55 2016
  DuplicateSignature:
   package:shim-signed:1.18~16.04.1+0.8-0ubuntu2
   Installing for x86_64-efi platform.
   grub-install: error: cannot find EFI directory.
   dpkg: error processing package shim-signed (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2015-12-11 (230 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.12~ubuntu16.04.1
  SourcePackage: shim-signed
  Title: package shim-signed 1.18~16.04.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to xenial on 2016-07-29 (0 days ago)

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