Confirmed on Lenovo Thinkpad 450s with Ubuntu 14.04.2 LTS x64.
Grub2 version 2.02~beta2-9ubuntu1.1 .
Original menu entry produced by os-prober:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os
$menuentry_id_option 'osprober-efi-40BC-A843' {
insmod part_gpt
insmod fat
set root='hd0,gpt2'
if [ x$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 40BC-A843
else
search --no-floppy --fs-uuid --set=root 40BC-A843
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
set timeout=10
fi
### END /etc/grub.d/30_os-prober ###
Custom menu entry which DOES NOT work
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry 'Windows Boot Manager (on /dev/sda2) [mod]' --class windows --class
os $menuentry_id_option 'osprober-efi-40BC-A843' {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 40BC-A843
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
set timeout=3
fi
Hoping for a resolution to make it into the ubuntu repositories. I've no
great desire to flash BIOS, use a different bootloader, or of course
change the boot order every time so Windows boots. Happy to provide any
and all further info needed!
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https://bugs.launchpad.net/bugs/1091464
Title:
Unable to chainload Windows 8 with Secure Boot enabled
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