> I don't know if this is helpful, but Ubuntu Launchpad has a ppa package for > elftoaout which has been built recently. > > https://launchpad.net/~likemartinma/+archive/ubuntu/elftoaout
Thanks for the pointer, but we have the tool in the repos already. It's in the sparc-utils package. But it would be better to add the tool's sources to the grub2 tree and build it in-place, then use that to convert the binary (as Adrian suggested). Something that needs to be discussed with the grub2 maintainers.