Comment 29 for bug 2051999

Update: Instead of my name space, I have uploaded a 2.12 version to this PPA: https://launchpad.net/~ubuntu-uefi-team/+archive/ubuntu/backports-build

If it builds correctly, it can be used on Jammy with less fear by adding:
"deb [trusted=yes] https://ppa.launchpadcontent.net/ubuntu-uefi-team/backports-build/ubuntu/ jammy main"

The caveat of this being non-validated development software, and it not being compatible with Secure Boot are still there, but at least it should avoid the shlibs breakage. (Please note I have only uploaded grub2-unsigned, which only includes grub-efi-*, but that's all you need to test EFI changes).