[Bug 1766313] Re: (non-UEFI) package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

[Jorge Gustavo]

This package fails to install on a fresh Ubuntu 18.04.

My laptop has the UEFI boot security disabled. It is an ASUS N552VX.206.

jgr at zoe:~$ cat /sys/firmware/efi
cat: /sys/firmware/efi: No such file or directory

After installation, I tried to correct it, but if fails:

sudo apt -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up shim-signed (1.34.9+13-0ubuntu2) ...
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
dpkg: error processing package shim-signed (--configure):
 installed shim-signed package post-installation script subprocess returned error exit status 1
Setting up grub-efi-amd64-signed (1.93+2.02-2ubuntu8) ...
grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 shim-signed
 grub-efi-amd64-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

Looking at the file system, there is no /usr/lib/grub/i386-pc/modinfo.sh

jgr at zoe:~$ ls -l /usr/lib/grub/
total 20
lrwxrwxrwx 1 root root    34 abr 29 14:54 grub-mkconfig_lib -> ../../share/grub/grub-mkconfig_lib
drwxr-xr-x 2 root root 16384 abr 29 14:56 x86_64-efi
drwxr-xr-x 2 root root  4096 abr 29 14:56 x86_64-efi-signed

There is another modinfo.sh script, but on a different folder:

jgr at zoe:~$ ls -l /usr/lib/grub/x86_64-efi/modinfo.sh 
-rwxr-xr-x 1 root root 2475 mar  4 13:11 /usr/lib/grub/x86_64-efi/modinfo.sh

How to reproduce? Well, in my case I've tried several times to install
Ubuntu 18.04, and it always fails. Right now, the workaround is to
delete this package.

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Title:
  (non-UEFI) package shim-signed 1.33.1+13-0ubuntu2 failed to
  install/upgrade: installed shim-signed package post-installation
  script subprocess returned error exit status 1

Status in shim-signed package in Ubuntu:
  Confirmed

Bug description:
  Trying to install speedtest-cli on Ubuntu 18.04.

  $ sudo apt install speedtest-cli
  [sudo] password r: 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following NEW packages will be installed:
    speedtest-cli
  0 upgraded, 1 newly installed, 0 to remove and 417 not upgraded.
  2 not fully installed or removed.
  Need to get 22.8 kB of archives.
  After this operation, 100 kB of additional disk space will be used.
  Get:1 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 speedtest-cli all 2.0.0-1 [22.8 kB]
  Fetched 22.8 kB in 1s (22.0 kB/s)        
  Selecting previously unselected package speedtest-cli.
  (Reading database ... 284033 files and directories currently installed.)
  Preparing to unpack .../speedtest-cli_2.0.0-1_all.deb ...
  Unpacking speedtest-cli (2.0.0-1) ...
  Setting up shim-signed (1.33.1+13-0ubuntu2) ...
  Installing for x86_64-efi platform.
  grub-install: error: cannot find EFI directory.
  dpkg: error processing package shim-signed (--configure):
   installed shim-signed package post-installation script subprocess returned error exit status 1
  Setting up grub-efi-amd64-signed (1.93+2.02-2ubuntu8) ...
  grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
  dpkg: error processing package grub-efi-amd64-signed (--configure):
   installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
  Processing triggers for man-db (2.8.3-1) ...
  Setting up speedtest-cli (2.0.0-1) ...
  Errors were encountered while processing:
   shim-signed
   grub-efi-amd64-signed
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Package
  DistroRelease: Ubuntu 18.04
  Package: shim-signed 1.33.1+13-0ubuntu2
  ProcVersionSignature: Ubuntu 4.15.0-13.14-lowlatency 4.15.10
  Uname: Linux 4.15.0-13-lowlatency x86_64
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.9-0ubuntu4
  AptOrdering:
   speedtest-cli:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  BootEFIContents:
   fw
   fwupx64.efi
  Date: Mon Apr 23 12:33:31 2018
  EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: EFI variables are not supported on this system.
  EFITables: Apr 23 11:18:26 roger-desktop fwupd[4469]: disabling plugin because: failed to startup uefi: UEFI firmware updating not supported
  ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1
  Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-2
  PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
  RelatedPackageVersions:
   dpkg 1.19.0.5ubuntu1
   apt  1.6~beta1
  SourcePackage: shim-signed
  Title: package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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