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[address@hidden]

Hi GNU Grub Team,

Recently I find an issue when I use grub-2.12-for-windows. The error code is "symbol `_stack_chk_guard' not found"

Details of how I find the issue are as follow:

 Step One

I downloaded both the latest 2.12 version and the previous 2.06 version from https://ftp.gnu.org/gnu/grub/, the detailed screenshot is as follow:

Step Two

Extract these two versions of grub for windows and execute the following command: grub-install.exe -d x86_64-efi --efi-directory=z: --boot-directory=z:/EFI --target=x86_64-efi --removable -v

Here "z:" is my usb drive which is fat32 file system and the command ended with no error. Below is screenshot for "grub-2.12-for-windows" and the operation result is same for grub-2.06-for-windows 

The file tree of EFI Partition is as follow, for details please refer to the files attached

Step Three

Add grub.cfg file to EFI/BOOT and EFI/grub directory. Details of these two files are as follow:

1)EFI/BOOT/grub.cfg

set timeout=5

set prefix=/EFI/boot

configfile /EFI/grub/grub.cfg

2)EFI/grub/grub.cfg

set timeout=5

set prefix=/EFI/grub

menuentry 'Reboot' {

reboot

}

menuentry 'Shutdown' {

halt

}

menuentry 'UEFI Firmware Settings' {

fwsetup

}

Step Four

Copy the EFI folder to root directory of EFI Partion of an Windows x64 Platform VMware Virtual Machine for test

1)For "Grub-2.06-for-windows" the result is as follow, grub 2.06 efi loader works well

2)For "Grub-2.12-for-windows" the result is as follow. It prompts "symbol `_stack_chk_guard' not found" which is the same as the screenshot shown at the top of this mail:

I'm sure that all of the above environment and operations are the same, the only difference is the grub-for-windows software version. So please help to check that if this is a bug for "Grub-2.12-for-windows" or not. 

Thanks

---

unique_boblee@outlook.com

EFI(grub-2.06-for-windows).zip
Description: Binary data

EFI(grub-2.12-for-windows).zip
Description: Binary data