[Bug 1024383] Re: invalid Windows7 EFI entries in GRUB

YannUbuntu yannubuntu at gmail.com
Fri Sep 14 15:20:47 UTC 2012


** Description changed:

  64bits computer with pre-installed EFI Windows 7.
  
  Installed Ubuntu 64bits in dual-boot. GRUB (grub-efi) is correctly
  installed and allows to boot Ubuntu, but it does not allow to boot
  Windows.
  
  Its menu shows 2 INVALID Windows entries. When selecting these entries,
  it displays "Invalid EFI file path" error, and returns to GRUB menu.
  
- ### BEGIN /etc/grub.d/30_os-prober ###
- menuentry "Windows 7 (loader) (on /dev/sda3)" --class windows --class os {
-     insmod part_gpt
-     insmod ntfs
-     set root='(hd0,gpt3)'
-     search --no-floppy --fs-uuid --set=root EE00AEA700AE75ED
-     chainloader +1
- }
- menuentry "Windows Recovery Environment (loader) (on /dev/sda5)" --class windows --class os {
-     insmod part_gpt
-     insmod ntfs
-     set root='(hd0,gpt5)'
-     search --no-floppy --fs-uuid --set=root B2BCAC28BCABE557
-     drivemap -s (hd0) ${root}
-     chainloader +1
- }
- ### END /etc/grub.d/30_os-prober ###
- 
- 
+ It appears that GRUB creates BIOS/mbr entries when it should be UEFI/gpt
+ type entries.
  
  *********************** WORKAROUND **************************
  
  either boot Windows from the (EFI) BIOS menu, or add valid Windows entries via Boot-Repair.
  ***************************************************************
  
- 
- (original thread in French: http://forum.ubuntu-fr.org/viewtopic.php?pid=10010231#p10010231 )
+ (original thread in French: http://forum.ubuntu-
+ fr.org/viewtopic.php?pid=10010231#p10010231 )

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https://bugs.launchpad.net/bugs/1024383

Title:
  invalid Windows7 EFI entries in GRUB

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

Bug description:
  64bits computer with pre-installed EFI Windows 7.

  Installed Ubuntu 64bits in dual-boot. GRUB (grub-efi) is correctly
  installed and allows to boot Ubuntu, but it does not allow to boot
  Windows.

  Its menu shows 2 INVALID Windows entries. When selecting these
  entries, it displays "Invalid EFI file path" error, and returns to
  GRUB menu.

  It appears that GRUB creates BIOS/mbr entries when it should be
  UEFI/gpt type entries.

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

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

  (original thread in French: http://forum.ubuntu-
  fr.org/viewtopic.php?pid=10010231#p10010231 )

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