[Bug 1512148] Re: package grub-pc 2.02~beta2-9ubuntu1.4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Phillip Susi]

You have incorrectly modified your /etc/default/grub file.  These lines
need to be one line, with the quotes at the start end end of the
options:

GRUB_CMDLINE_LINUX_DEFAULT= acpi=off apm=off 
"quiet splash"


** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

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Title:
  package grub-pc 2.02~beta2-9ubuntu1.4 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 127

Status in grub2 package in Ubuntu:
  Invalid

Bug description:
  just got this error during install  .  sorry I do not know enough to
  elaborate

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: grub-pc 2.02~beta2-9ubuntu1.4
  ProcVersionSignature: Ubuntu 3.19.0-31.36~14.04.1-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-31-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.18
  Architecture: amd64
  Date: Sun Nov  1 12:00:12 2015
  DuplicateSignature: package:grub-pc:2.02~beta2-9ubuntu1.4:subprocess installed post-installation script returned error exit status 127
  ErrorMessage: subprocess installed post-installation script returned error exit status 127
  InstallationDate: Installed on 2015-10-21 (10 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  InvalidGrubScript: /etc/default/grub
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-31-generic root=UUID=e5935e2c-d417-437e-b2b7-cc731d9bfc28 ro quiet splash
  RelatedPackageVersions:
   dpkg 1.17.5ubuntu5.4
   apt  1.0.1ubuntu2.10
  SourcePackage: grub2
  Title: package grub-pc 2.02~beta2-9ubuntu1.4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
  UpgradeStatus: No upgrade log present (probably fresh install)

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