diff --git a/etc/MAKEDEV b/etc/MAKEDEV
index efaa7d10431f..7bcd13d2ad20 100644
--- a/etc/MAKEDEV
+++ b/etc/MAKEDEV
@@ -121,7 +121,7 @@
 #	ipl	ipfilter control devices (ipl, ipnat, ipstate, ipauth)
 #	kbd	keyboard devices
 #
-#	$Id: MAKEDEV,v 1.184 1999/01/24 13:51:26 markm Exp $
+#	$Id: MAKEDEV,v 1.185 1999/02/04 20:35:07 mjacob Exp $
 #
 
 PATH=/sbin:/bin/:/usr/bin:/usr/sbin:$PATH
@@ -161,6 +161,11 @@ dkminor()
 {
 	echo $(($1 << 25 | ($2 / 32) << 21 | ($2 % 32) << 3 | $3 << 16 | $4))
 }
+# Convert tape (ctrl, unit, mode, access) to minor number
+saminor()
+{
+	echo $(($1 << 29 | ($2 / 16) << 16 | ($2 % 16) << 4 | $3 << 2 | $4))
+}
 
 # Override mknod(2) to add extra handling to it.
 mknod() {
@@ -614,25 +619,16 @@ sa*)
 	chr=14
 
 	case $unit in
-	[0-9]|[1-9][0-9]|[1-9][0-9][0-9])
-		if [ $unit -gt 15 ]; then
-			mult=65536
-		else
-			mult=16
-		fi
-		rm -f rsa${unit} nrsa${unit} ersa${unit} rsa${unit}.ctl
-		mknod rsa${unit}.ctl c $chr `expr $unit '*' $mult + 536870912`
-		for mode in 0 1 2 3
+	[0-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9])
+		mknod rsa${unit}.ctl c $chr `saminor 1 ${unit} 0 0`
+		for m in 0 1 2 3
 		do
-			rm -f rsa${unit}.${mode} nrsa${unit}.${mode} ersa${unit}.${mode}
-			mknod rsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 0`
-			mknod nrsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 1`
-			mknod ersa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 2`
-			chgrp operator	rsa${unit}.${mode}\
-					nrsa${unit}.${mode} \
-					ersa${unit}.${mode}
+			mknod rsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 0`
+			mknod nrsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 1`
+			mknod ersa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 2`
+			chgrp operator rsa${unit}.${m} nrsa${unit}.${m} \
+				ersa${unit}.${m}
 		done
-
 		ln -f rsa${unit}.0 rsa${unit}
 		ln -f nrsa${unit}.0 nrsa${unit}
 		ln -f ersa${unit}.0 ersa${unit}
diff --git a/etc/etc.alpha/MAKEDEV b/etc/etc.alpha/MAKEDEV
index d4a5aea7408a..38b4e945cedf 100644
--- a/etc/etc.alpha/MAKEDEV
+++ b/etc/etc.alpha/MAKEDEV
@@ -107,7 +107,7 @@
 #	pci	PCI configuration-space access from user mode
 #	ipl	ipfilter control devices (ipl, ipnat, ipstate, ipauth)
 #
-#	$Id: MAKEDEV,v 1.3 1998/09/16 09:21:43 dfr Exp $
+#	$Id: MAKEDEV,v 1.4 1999/02/04 20:35:07 mjacob Exp $
 #	from etc.i386 MAKEDEV,v 1.171 1998/09/15 10:21:35 gibbs Exp
 #
 
@@ -148,6 +148,11 @@ dkminor()
 {
 	echo $(($1 << 25 | ($2 / 32) << 21 | ($2 % 32) << 3 | $3 << 16 | $4))
 }
+# Convert tape (ctrl, unit, mode, access) to minor number
+saminor()
+{
+	echo $(($1 << 29 | ($2 / 16) << 16 | ($2 % 16) << 4 | $3 << 2 | $4))
+}
 
 # Override mknod(2) to add extra handling to it.
 mknod() {
@@ -596,28 +601,19 @@ sa*)
 	chr=14
 
 	case $unit in
-	[0-9]|[1-9][0-9]|[1-9][0-9][0-9])
-		if [ $unit -gt 15 ]; then
-			mult=65536
-		else
-			mult=16
-		fi
-		rm -f rsa${unit} nrsa${unit} ersa${unit} rsa${unit}.ctl
-		mknod rsa${unit}.ctl c $chr `expr $unit '*' $mult + 536870912`
-		for mode in 0 1 2 3
+	[0-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9])
+		mknod rsa${unit}.ctl c $chr `saminor 1 ${unit} 0 0`
+		for m in 0 1 2 3
 		do
-			rm -f rsa${unit}.${mode} nrsa${unit}.${mode} ersa${unit}.${mode}
-			mknod rsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 0`
-			mknod nrsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 1`
-			mknod ersa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 2`
-			chgrp operator	rsa${unit}.${mode}\
-					nrsa${unit}.${mode} \
-					ersa${unit}.${mode}
+			mknod rsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 0`
+			mknod nrsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 1`
+			mknod ersa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 2`
+			chgrp operator rsa${unit}.${m} nrsa${unit}.${m} \
+				ersa${unit}.${m}
 		done
-
-		ln rsa${unit}.0 rsa${unit}
-		ln nrsa${unit}.0 nrsa${unit}
-		ln ersa${unit}.0 ersa${unit}
+		ln -f rsa${unit}.0 rsa${unit}
+		ln -f nrsa${unit}.0 nrsa${unit}
+		ln -f ersa${unit}.0 ersa${unit}
 		;;
 	*)
 		echo bad unit for tape in: $i
diff --git a/etc/etc.i386/MAKEDEV b/etc/etc.i386/MAKEDEV
index efaa7d10431f..7bcd13d2ad20 100644
--- a/etc/etc.i386/MAKEDEV
+++ b/etc/etc.i386/MAKEDEV
@@ -121,7 +121,7 @@
 #	ipl	ipfilter control devices (ipl, ipnat, ipstate, ipauth)
 #	kbd	keyboard devices
 #
-#	$Id: MAKEDEV,v 1.184 1999/01/24 13:51:26 markm Exp $
+#	$Id: MAKEDEV,v 1.185 1999/02/04 20:35:07 mjacob Exp $
 #
 
 PATH=/sbin:/bin/:/usr/bin:/usr/sbin:$PATH
@@ -161,6 +161,11 @@ dkminor()
 {
 	echo $(($1 << 25 | ($2 / 32) << 21 | ($2 % 32) << 3 | $3 << 16 | $4))
 }
+# Convert tape (ctrl, unit, mode, access) to minor number
+saminor()
+{
+	echo $(($1 << 29 | ($2 / 16) << 16 | ($2 % 16) << 4 | $3 << 2 | $4))
+}
 
 # Override mknod(2) to add extra handling to it.
 mknod() {
@@ -614,25 +619,16 @@ sa*)
 	chr=14
 
 	case $unit in
-	[0-9]|[1-9][0-9]|[1-9][0-9][0-9])
-		if [ $unit -gt 15 ]; then
-			mult=65536
-		else
-			mult=16
-		fi
-		rm -f rsa${unit} nrsa${unit} ersa${unit} rsa${unit}.ctl
-		mknod rsa${unit}.ctl c $chr `expr $unit '*' $mult + 536870912`
-		for mode in 0 1 2 3
+	[0-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9])
+		mknod rsa${unit}.ctl c $chr `saminor 1 ${unit} 0 0`
+		for m in 0 1 2 3
 		do
-			rm -f rsa${unit}.${mode} nrsa${unit}.${mode} ersa${unit}.${mode}
-			mknod rsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 0`
-			mknod nrsa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 1`
-			mknod ersa${unit}.${mode} c $chr `expr $unit '*' $mult + $mode '*' 4 + 2`
-			chgrp operator	rsa${unit}.${mode}\
-					nrsa${unit}.${mode} \
-					ersa${unit}.${mode}
+			mknod rsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 0`
+			mknod nrsa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 1`
+			mknod ersa${unit}.${m} c $chr `saminor 0 ${unit} ${m} 2`
+			chgrp operator rsa${unit}.${m} nrsa${unit}.${m} \
+				ersa${unit}.${m}
 		done
-
 		ln -f rsa${unit}.0 rsa${unit}
 		ln -f nrsa${unit}.0 nrsa${unit}
 		ln -f ersa${unit}.0 ersa${unit}