[Bug 1050940] Re: Ubiquity fails creating a correct Windows dualboot on EFI computers (grub-pc <-> grub-efi)

[Steve Langasek]

Erick, it would be helpful if you would attach relevant debug
information as attachments in launchpad, rather than linking to
pastebins.

Your "boot info summary" shows the following menu entry:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-30D8-159A' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  30D8-159A
	else
	  search --no-floppy --fs-uuid --set=root 30D8-159A
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}

The boot entry /after/ the boot repair seems to be identical:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-30D8-159A' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  30D8-159A
	else
	  search --no-floppy --fs-uuid --set=root 30D8-159A
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}

So how exactly did the boot fail for you before running the boot repair?

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubiquity in Ubuntu.
https://bugs.launchpad.net/bugs/1050940

Title:
  Ubiquity fails creating a correct Windows dualboot on EFI computers
  (grub-pc <-> grub-efi)

Status in ubiquity package in Ubuntu:
  Triaged

Bug description:
  Currently, Ubiquity sometimes fails creating a correct Windows dualboot when:
  - either it installs Ubuntu in EFI mode when Windows is installed in Legacy mode ( examples: Bug #908109 , Bug #959446 , Bug #956412
  http://ubuntuforums.org/showthread.php?p=12238420#post12238420 )
  - or it installs Ubuntu in Legacy (not-EFI) mode when Windows is installed in EFI mode. ( example: http://ubuntuforums.org/showpost.php?p=12246811&postcount=6 )

  In order to create a correct dualboot, Ubiquity should always install
  Ubuntu in the same mode as Windows.

  This could be done by choosing between grub-efi and grub-pc based on
  the presence of an existing ESP when performing a side-by-side
  install, instead of whether the cd is booted in efi mode or not.

  *************** WORKAROUND: using Boot-Repair to convert Ubuntu in the same mode as Windows.
  See https://help.ubuntu.com/community/UEFI

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1050940/+subscriptions