Using Grub2-EFI on USB-drive

Hi all

I have an issue booting efi images from the grub2 menu in UEFI-mode if secure boot is enabled on the PC, is there any way to make the grub2 efi able to boot images with secure boot on?
The reason i'm asking is because some laptops (i use this @ work where we repair PCs) are not able to disable secure boot and i wan't the USB-drive to work on these aswell :(

Best Regards
MrC

ok after more digging on this forum i found this thread: http://theoven.org/index.php?topic=1092.0 which pointed to this bug: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1091464

so i guess my machines are some of the ones affected by this bug, is the grub2 in the win8.1pese project the latest version or can i maybe find it elsewhere to see if a new version fixes the issue on my machines 

Ok i think i solved it sort of ... according to a post on the bug tracker someone suggested OpenSUSE had a new working grub bootloader with secure boot so i copied the content of the grub boot files from the OpenSUSE iso to my Win8.1SE pUSB-drive and now i am able to boot stuff from grub2 in UEFI-mode with secure boot on 

Maybe this will be implementable on Win8.1SEPE builder 

Hi mrchisholm,

Did you use the 32 bit drivers or 64?  Are you able to post the drivers that you used?

Sure

i used x64 version, i did not try the x86 version yet.

posted the files below, just delete current grub.efi file on usb in /EFI/BOOT and extract the contents of the rar file into that folder and it should boot up 

I actually have this issue as well. I tried injecting those files to my USB drive and all I get now is a bash command line. Is there any way to inject a newer version of grub on the front end before build? If so how would one do that? Or maybe can we get an update to the Grub script to utilize the newer grub versions? Seems to be a lot of new ones since March 2015. I'm not a grub expert so definitely hoping someone can help the community on this as I deal with a lot of secure boot clients and Id like to be able to boot to the menu list instead of JUST the PE environment when SB is enabled.