[Bug 984530] Re: package grub-pc 1.99-21ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Brian Murray]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.  Reviewing your log files attached to this bug report it
seems that there is a problem in the configuration of your
'/etc/default/grub' file.  Keep in mind than any kernel parameters
should have double quotes around them like so:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash".  Please review your changes
to '/etc/default/grub' and try running 'sudo update-grub' again.  In the
event they you are able to resolve your issue please set this bug's
status to Invalid.  If you are not able to resolve the issue please
attach the file '/etc/default/grub' to the bug report.  Thanks and good
luck!

** Changed in: grub2 (Ubuntu)
       Status: Confirmed => Incomplete

** Changed in: grub2 (Ubuntu)
   Importance: Undecided => Low

** Tags added: syntax-error

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https://bugs.launchpad.net/bugs/984530

Title:
  package grub-pc 1.99-21ubuntu3 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 2

Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  I can not exactly say when the error occurred --- I was about to run Update Manager!
  1)
  jg at HP-Pavilion-g6-1b67ca:~$ lsb_release -rd
  Description:	Ubuntu precise (development branch)
  Release:	12.04
  2)
  jg at HP-Pavilion-g6-1b67ca:~$ apt-cache policy update-manager
  update-manager:
    Installed: 1:0.156.11
    Candidate: 1:0.156.13
    Version table:
       1:0.156.13 0
          500 http://ca.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
   *** 1:0.156.11 0
          100 /var/lib/dpkg/status

  ProblemType: Package
  DistroRelease: Ubuntu 12.04
  Package: grub-pc 1.99-21ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu4
  AptOrdering:
   hardinfo: Install
   lm-sensors: Install
   grub-pc: Configure
   hardinfo: Configure
   lm-sensors: Configure
  Architecture: amd64
  Date: Tue Apr 17 20:01:42 2012
  ErrorMessage: subprocess installed post-installation script returned error exit status 2
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  InvalidGrubScript: /etc/grub.d/30_os-prober
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=0ccd3df4-ef2b-4c41-ae46-fc008cc5a1bb ro quiet splash vt.handoff=7
  SourcePackage: grub2
  Title: package grub-pc 1.99-21ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
  UpgradeStatus: No upgrade log present (probably fresh install)

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