[Bug 1007923] Re: grub2 does not automatically recognize/add windows 7 from gpt partitions

YannUbuntu yannubuntu at gmail.com
Fri Sep 14 15:10:01 UTC 2012

*** This bug is a duplicate of bug 807801 ***

** This bug has been marked a duplicate of bug 807801
   grub-update fails to detect windows bootloader on a uefi system

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  grub2 does not automatically recognize/add windows 7 from gpt

Status in “grub2” package in Ubuntu:

Bug description:
  Expected to happen: sudo update-grub should add windows to the grub menu, using the menu option would boot into windows 7
  What happened instead: sudo update-grub does not recognize windows

  Windows 7 (as well as Ubuntu 12.04) is running on the same hard disk
  with a GPT partition.

  I was able to manually add windows using the following menuentries (both work, only one is needed) to

  menuentry "Windows" { 
  search --fs-uuid --no-floppy --set=root E20F-0E2C
  chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi 

  menuentry "Windows" { 
  insmod part_gpt 
  insmod fat 
  insmod search_fs_uuid 
  insmod chain 
  set root='(hd0,gpt3)' 
  search --fs-uuid --no-floppy --set=root E20F-0E2C
  chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi 

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub-efi 1.99-21ubuntu3.1
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  Date: Sat Jun  2 12:41:58 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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