e0f9cec7d6
We create a UFS root filesystem using makefs(8), and later pass it to mkimg(1) when creating the final image. The correct partition type is freebsd-ufs; the freebsd parition type is for partitions containing a BSD disklabel. Reviewed by: emaste MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D26987