[Bug 1316068] [NEW] error: disk 'hd0,msdos5' not found

[Mathieu31]

Public bug reported:

After upgrading the distribution, grub fails to boot any of the installed OSes.
Whatever the option selected in the grub menu, I get the same error message: error: disk 'hd0,msdos5' not found.
Unfortunately, hd0,msdos5 is the partition where the root of the Xubuntu system resides, and where the grub files (/boot) are.
By the way, the grub menu is shown in text only, without the nice blue background it should show.
Downgrading grub to version 2.00-19ubuntu2.1 make the system bootable again.
I have updated the BIOS firmware, to make sure it does not solve the issue.
A regression in  grub ?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: grub2-common 2.02~beta2-9
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: XFCE
Date: Mon May  5 11:53:03 2014
InstallationDate: Installed on 2013-01-07 (482 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
SourcePackage: grub2
UpgradeStatus: Upgraded to trusty on 2014-04-26 (8 days ago)

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

** Attachment added: "grub config file"
   https://bugs.launchpad.net/bugs/1316068/+attachment/4105436/+files/grub.cfg

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https://bugs.launchpad.net/bugs/1316068

Title:
  error: disk 'hd0,msdos5' not found

Status in “grub2” package in Ubuntu:
  New

Bug description:
  After upgrading the distribution, grub fails to boot any of the installed OSes.
  Whatever the option selected in the grub menu, I get the same error message: error: disk 'hd0,msdos5' not found.
  Unfortunately, hd0,msdos5 is the partition where the root of the Xubuntu system resides, and where the grub files (/boot) are.
  By the way, the grub menu is shown in text only, without the nice blue background it should show.
  Downgrading grub to version 2.00-19ubuntu2.1 make the system bootable again.
  I have updated the BIOS firmware, to make sure it does not solve the issue.
  A regression in  grub ?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: grub2-common 2.02~beta2-9
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Mon May  5 11:53:03 2014
  InstallationDate: Installed on 2013-01-07 (482 days ago)
  InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  SourcePackage: grub2
  UpgradeStatus: Upgraded to trusty on 2014-04-26 (8 days ago)

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