In case anyone needs to install the last known binaries that work, I uploaded a nice overview of the problem and direct links to the Ubuntu packages here:
https://github.com/alkisg/liveusb/issues/3 ** Bug watch added: github.com/alkisg/liveusb/issues #3 https://github.com/alkisg/liveusb/issues/3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876737 Title: GRUB refuses to boot a 32-bit kernel when in EFI mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1876737/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs