grub2 uses grub-mkconfig (called by update-grub) to regen the grub.cfg file, as the linux and initrd.gz files are downloaded correctly by koan to /boot/linux and /boot/initrd.gz you can get use it to regenerate the grub.cfg file.
I think grub-mkconfig expects the files in the format vmlinuz-$version and initrd-img-$version though...
grub2 uses grub-mkconfig (called by update-grub) to regen the grub.cfg file, as the linux and initrd.gz files are downloaded correctly by koan to /boot/linux and /boot/initrd.gz you can get use it to regenerate the grub.cfg file.
I think grub-mkconfig expects the files in the format vmlinuz-$version and initrd-img-$version though...