Genode doesn't see init when booting from grub2 on hard drive

I've installed Genode on a partition on my hard drive, and configured Grub2 to boot it. However, Genode cannot find the ROM module "init". I configured Grub2 correctly--I used multiboot and added all the modules, including init. Note that I can boot from a cd with no problems besides graphics issues. I don't see any reason for the error besides Grub2 loading the modules differently. Is there any fix to make Genode compatible with Grub2? Could someone else try using Grub2 and see whether they get the same error?