I think it's fair to give the user a chance to understand why
scan_ffs(8) won't help in this case.
--- scan_ffs.8.~1.16.~ Mon Mar 24 00:28:46 2008
+++ scan_ffs.8 Fri Feb 8 21:31:10 2019
@@ -136,6 +136,7 @@ you out of a jam when they happen.
.Sh SEE ALSO
.Xr disklabel 8
-It is not perfect, and could do a lot more things with date/time information
+It is not perfect, does not support FFS2 filesystems,
+and could do a lot more things with date/time information
in the superblocks it finds, but this program has saved more than one butt,
more than once.
jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE