[Bug 807801] Re: grub-update fails to detect windows bootloader on a uefi system

YannUbuntu yannubuntu at gmail.com
Fri Sep 14 15:21:20 UTC 2012


** Description changed:

  HOW TO REPRODUCE:
  1) install Ubuntu on a computer with UEFI firmware
  2) Reboot the PC, boot into Ubuntu, open a terminal and check that the 'sudo os-prober' command does not return any Windows entry.
  
  REMARK: if it returns some Windows entry, but those entries are invalid,
  you may be affected by Bug #1024383 instead.
  
+ *********************** WORKAROUND **************************
+ 
+ either boot Windows from the (EFI) BIOS menu, or add valid Windows
+ entries via Boot-Repair.
+ 
  
  ***** Original description:
  running a fresh uefi (software uefi) system and the grub-update fails to detect windows boot entry/efi files and add them automatically
  microsoft folder is present in both the efi system partition as well as the /boot folder/partition

** Summary changed:

- grub-update fails to detect windows bootloader on a uefi system
+ GRUB2 fails to detect/add Windows entries on a UEFI system

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https://bugs.launchpad.net/bugs/807801

Title:
  GRUB2 fails to detect/add Windows entries on a UEFI system

Status in os-prober:
  New
Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  HOW TO REPRODUCE:
  1) install Ubuntu on a computer with UEFI firmware
  2) Reboot the PC, boot into Ubuntu, open a terminal and check that the 'sudo os-prober' command does not return any Windows entry.

  REMARK: if it returns some Windows entry, but those entries are
  invalid, you may be affected by Bug #1024383 instead.

  *********************** WORKAROUND **************************

  either boot Windows from the (EFI) BIOS menu, or add valid Windows
  entries via Boot-Repair.


  ***** Original description:
  running a fresh uefi (software uefi) system and the grub-update fails to detect windows boot entry/efi files and add them automatically
  microsoft folder is present in both the efi system partition as well as the /boot folder/partition

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