floppy labels have default to fd0a being 4.2BSD

src/etc/etc.i386/disktab

@@ -73,13 +73,13 @@ cp3100new|Conner Peripherals 100MB IDE, with a different configuration:\
 
 floppy|floppy3|3in|3.5in High Density Floppy:\
 	:ty=floppy:se#512:nt#2:rm#300:ns#18:nc#80:\
-	:pa#2880:oa#0:ba#4096:fa#512:\
+	:pa#2880:oa#0:ba#4096:fa#512:ta=4.2BSD:ba#4096:fa#512: \
 	:pb#2880:ob#0:\
 	:pc#2880:oc#0:
 
 floppy5|5in|5.25in High Density Floppy:\
 	:ty=floppy:se#512:nt#2:rm#300:ns#15:nc#80:\
-	:pa#2400:oa#0:ba#4096:fa#512:\
+	:pa#2400:oa#0:ba#4096:fa#512:ta=4.2BSD:ba#4096:fa#512:\
 	:pb#2400:ob#0:bb#4096:fb#512:\
 	:pc#2400:oc#0:bc#4096:fc#512:
 

src/etc/etc.sparc/disktab

@@ -1,4 +1,4 @@
-# $Id: disktab,v 1.6 1996/09/30 15:20:17 deraadt Exp $
+# $Id: disktab,v 1.7 1996/12/21 05:28:21 deraadt Exp $
 #
 #	@(#)disktab	5.5 (Berkeley) 2/27/91
 #
@@ -24,7 +24,7 @@ miniroot:\
 
 floppy|floppy3|3in|3.5in High Density Floppy:\
 	:ty=floppy:se#512:nt#2:rm#300:ns#18:nc#80:\
-	:pa#2880:oa#0:ba#4096:fa#512:\
+	:pa#2880:oa#0:ba#4096:fa#512:ta=4.2BSD:ba#4096:fa#512: \
 	:pb#2880:ob#0:\
 	:pc#2880:oc#0: