grub won't boot on older UEFI systems

Description:

grub won't boot on older UEFI firmware due to updates to the bli module. You can find more information about it in the grub mailing list: https://lists.gnu.org/archive/html/bug-grub/2025-09/msg00010.html

Additional info:

• package version(s): 2:2.12.r359.g19c698d12-1
• link to upstream bug report, if any: https://lists.gnu.org/archive/html/bug-grub/2025-09/msg00010.html

Steps to reproduce:

After installing grub version 2:2.12.r359.g19c698d12-1 via grub-install some systems with older UEFI firmware will be rendered unbootable due to the bli module update of commit f326c5c. Last working version of grub at Arch was: 2:2.12.r292.g73d1c959-1

Similar issue was reported to systemd-boot: systemd#58 (closed)

Fix is given by the author of the original patch: https://lists.gnu.org/archive/html/grub-devel/2025-09/msg00194.html