4185 New hash algorithm support

*** 1375,1384 ****
--- 1375,1390 ----
                  if (prop == ZFS_PROP_COMPRESSION) {
                          (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
                              "property setting is not allowed on "
                              "bootable datasets"));
                          (void) zfs_error(hdl, EZFS_NOTSUP, errbuf);
+                 } else if (prop == ZFS_PROP_CHECKSUM ||
+                     prop == ZFS_PROP_DEDUP) {
+                         (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+                             "property setting is not allowed on "
+                             "root pools"));
+                         (void) zfs_error(hdl, EZFS_NOTSUP, errbuf);
                  } else {
                          (void) zfs_standard_error(hdl, err, errbuf);
                  }
                  break;