[Bug 1009771] Re: package grub-pc 1.99-21ubuntu3.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Steve Langasek]

The error in the logs is:

> /usr/sbin/grub-mkconfig: 12: /etc/default/grub: quiet: not found
> run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 127

This indicates an incorrect manual edit of /etc/default/grub that has
broken the syntax of the file - not a bug in the grub package.  You will
need to fix this file so that it declares variables using correct shell
syntax (no spaces around equal signs; quotes around any values that
contain spaces).

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

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Title:
  package grub-pc 1.99-21ubuntu3.1 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 127

Status in “grub2” package in Ubuntu:
  Invalid

Bug description:
  ubuntu 12.04 using wubi
  after software update

  ProblemType: Package
  DistroRelease: Ubuntu 12.04
  Package: grub-pc 1.99-21ubuntu3.1
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  Date: Wed Jun  6 17:53:19 2012
  ErrorMessage: subprocess installed post-installation script returned error exit status 127
  InvalidGrubScript: /etc/default/grub
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=B686006286002609 loop=/hostname/disks/root.disk ro quiet splash vt.handoff=7
  SourcePackage: grub2
  Title: package grub-pc 1.99-21ubuntu3.1 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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