Don't complain about "updating UFS1 FS" in the 99% of cases where we are not.

clientside/tmcc/freebsd/rc.frisbee

@@ -513,6 +513,18 @@ fixone() {
     export SLICEFIX_DOM0MEM=`getvar DOM0MEM "$iline" unknown`
     export SLICEFIX_DISABLEIF=`getvar DISABLEIF "$iline" unknown`
 
+    #
+    # XXX stop complaining about potential UFS1 problems
+    # unless we are loading old FBSD4xx image.
+    #
+    _os=`getvar PARTOS "$iline" unknown`;
+    _osv=`getvar OSVERSION "$iline" 0`;
+    case "$_os/$_osv" in
+    FreeBSD/4.*)
+	export SLICEFIX_OLDFBSD=1
+	;;
+    esac
+
     $BINDIR/slicefix $PART $DISK
     return $?
 }

clientside/tmcc/freebsd/slicefix

@@ -59,6 +59,8 @@ esac
 # Handle pseudo arguments in the environment.
 #
 
+OLDBSD=${SLICEFIX_OLDBSD:-''}
+
 #
 # Explicitly enable/disable ACPI (BSD only)
 #
@@ -829,7 +831,7 @@ EOF1
 	umount $rootdev
 
 	# XXX need to fixup FS, see big comment above
-	if [ "x$vers" != "x4" ]; then
+	if [ "x$vers" != "x4" -a -n "$OLDBSD" ]; then
 		echo "WARNING: FBSD${vers} may have modified the UFS1 root FS"
 	fi