+mknod "$fromdir/block2" b 42 73 || test_skipped "Can't create block device node unless root"
+mknod "$fromdir/block3" b 105 73 || test_skipped "Can't create block device node unless root"
+mkfifo "$fromdir/fifo" || test_skipped "Can't run mkfifo"
+
+touch "$tmpdir/do_not_diff_the_files"