[Bug 1738525] Re: package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

The attached dpkg log shows that grub was successfully installed on your
system in EFI mode.  But your bug report claims that your system is not
booted in EFI mode, and shows that you are booted into an upstream
'lowlatency' kernel version, not the 4.4.0 kernel that was installed as
part of the Xubuntu installation; and that this lowlatency kernel was
present on your disk at the time that the install was done, which means
you did not reformat the partition that was mounted at /boot as part of
the install; and your /boot/efi is also reported to be empty.

This is not an actionable bug report given the currently available
information.  You will need to explain precisely what steps you took
that led you to this situation in order for us to determine if there is
a bug in Ubuntu.

** Changed in: shim-signed (Ubuntu)
       Status: New => Incomplete

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Title:
  package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
  failed to install/upgrade: subprocess installed post-installation
  script returned error exit status 1

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  I was installing xUbuntu LTS and it crashed while trying to install
  grub2.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
  Uname: Linux 4.9.8-040908-lowlatency x86_64
  NonfreeKernelModules: rtsx_usb_sdmmc rtsx_usb amdkfd amd_iommu_v2 amdgpu i915 ttm i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 drm mii ahci libahci wmi video fjes
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  BootEFIContents:
   fw
   fwupx64.efi
  Date: Sat Dec 16 14:09:43 2017
  Df:
   Filesystem     1K-blocks      Used Available Use% Mounted on
   /dev/sda5      355534780 324287240  13164368  97% /
   /dev/sdb         1212416   1212416         0 100% /cdrom
   udev             4029676         0   4029676   0% /dev
   tmpfs             808892      9484    799408   2% /run
  EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: efibootmgr: EFI variables are not supported on this system.
  EFITables:
   
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1
   apt  1.2.10ubuntu1
  SourcePackage: shim-signed
  Title: package shim-signed 1.32~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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