[Bug 1087153] [NEW] [Regression] GRUB2 silently fails to install in the MBR

[[IDC]Dragon]

Public bug reported:

My PC is an Intel Ivy Bridge, with a Gigabyte mainboard, a SSD being the only drive. No UEFI. CSM support enabled. I tried to install Ubuntu12.10 alongside an existing Windows 7, but GRUB2.00 silently failed to install in the MBR. 
I double checked by using Boot-Repair, same result, here was the log: 
http://paste.ubuntu.com/1402172
Then I installed Ubuntu12.04, and this time GRUB1.99 installed successfully in the MBR. See my current situation: http://paste.ubuntu.com/1407156

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: grub (not installed)
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.328
Date: Thu Dec  6 07:37:18 2012
LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug quantal running-unity

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https://bugs.launchpad.net/bugs/1087153

Title:
  [Regression] GRUB2 silently fails to install in the MBR

Status in “grub” package in Ubuntu:
  New

Bug description:
  My PC is an Intel Ivy Bridge, with a Gigabyte mainboard, a SSD being the only drive. No UEFI. CSM support enabled. I tried to install Ubuntu12.10 alongside an existing Windows 7, but GRUB2.00 silently failed to install in the MBR. 
  I double checked by using Boot-Repair, same result, here was the log: 
  http://paste.ubuntu.com/1402172
  Then I installed Ubuntu12.04, and this time GRUB1.99 installed successfully in the MBR. See my current situation: http://paste.ubuntu.com/1407156

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: grub (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.328
  Date: Thu Dec  6 07:37:18 2012
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub
  UpgradeStatus: No upgrade log present (probably fresh install)

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