The root archive for x86 images differs from the root archive for SPARC images. The whole root archive, or boot_archive, for x86 images is a UFS file system, compressed by using lzma. The SPARC platform does not support the compression of the whole root archive in this way. Instead, SPARC root archives use DCFS, which compresses each file individually. These individually compressed files might require specific handling in the manifest. For instructions, see the <boot_archive_contents> field in the dc_manifest (4) man page.