diff --git a/sbin/bsdlabel/bsdlabel.c b/sbin/bsdlabel/bsdlabel.c
index 31e57b7c9146..56b5176dc33c 100644
--- a/sbin/bsdlabel/bsdlabel.c
+++ b/sbin/bsdlabel/bsdlabel.c
@@ -125,7 +125,8 @@ static int	allfields;	/* present all fields in edit */
 static char const *xxboot;	/* primary boot */
 
 static off_t mbroffset;
-static int labeloffset = LABELOFFSET + LABELSECTOR * DEV_BSIZE;
+static int labelsoffset = LABELSECTOR;
+static int labeloffset = LABELOFFSET;
 static int bbsize = BBSIZE;
 static int alphacksum =
 #if defined(__alpha__)
@@ -161,14 +162,17 @@ main(int argc, char *argv[])
 				break;
 			case 'm':
 				if (!strcmp(optarg, "i386")) {
-					labeloffset = 512;
+					labelsoffset = 1;
+					labeloffset = 0;
 					bbsize = 8192;
 					alphacksum = 0;
 				} else if (!strcmp(optarg, "pc98")) {
-					labeloffset = 512;
+					labelsoffset = 1;
+					labeloffset = 0;
 					bbsize = 8192;
 					alphacksum = 0;
 				} else if (!strcmp(optarg, "alpha")) {
+					labelsoffset = 0;
 					labeloffset = 64;
 					bbsize = 8192;
 					alphacksum = 1;
@@ -349,7 +353,8 @@ writelabel(void)
 	for (i = 0; i < lab.d_npartitions; i++)
 		if (lab.d_partitions[i].p_size)
 			lab.d_partitions[i].p_offset += mbroffset;
-	bsd_disklabel_le_enc(bootarea + labeloffset, lp);
+	bsd_disklabel_le_enc(bootarea + labeloffset + labelsoffset * secsize,
+	    lp);
 	if (alphacksum) {
 		/* Generate the bootblock checksum for the SRM console.  */
 		for (p = (uint64_t *)bootarea, i = 0, sum = 0; i < 63; i++)
@@ -363,7 +368,8 @@ writelabel(void)
 		gctl_ro_param(grq, "verb", -1, "write label");
 		gctl_ro_param(grq, "class", -1, "BSD");
 		gctl_ro_param(grq, "geom", -1, dkname);
-		gctl_ro_param(grq, "label", 148+16*8, bootarea + labeloffset);
+		gctl_ro_param(grq, "label", 148+16*8, 
+			bootarea + labeloffset + labelsoffset * secsize);
 		errstr = gctl_issue(grq);
 		if (errstr != NULL) {
 			warnx("%s", errstr);
@@ -411,11 +417,18 @@ readlabel(int flag)
 	f = open(specname, O_RDONLY);
 	if (f < 0)
 		err(1, specname);
+	/* New world order */
+	if ((ioctl(f, DIOCGMEDIASIZE, &mediasize) != 0) ||
+	    (ioctl(f, DIOCGSECTORSIZE, &secsize) != 0)) {
+		err(4, "cannot get disk geometry");
+	}
 	(void)lseek(f, (off_t)0, SEEK_SET);
 	if (read(f, bootarea, BBSIZE) != BBSIZE)
 		err(4, "%s read", specname);
 	close (f);
-	error = bsd_disklabel_le_dec(bootarea + labeloffset, &lab, MAXPARTITIONS);
+	error = bsd_disklabel_le_dec(
+	    bootarea + (labeloffset + labelsoffset * secsize),
+	    &lab, MAXPARTITIONS);
 	if (flag && error)
 		errx(1, "%s: no valid label found", specname);
 
diff --git a/sbin/bsdlabel/runtest.sh b/sbin/bsdlabel/runtest.sh
index e7f3e966b7a2..eb43b90b237a 100644
--- a/sbin/bsdlabel/runtest.sh
+++ b/sbin/bsdlabel/runtest.sh
@@ -3,15 +3,18 @@
 
 TMP=/tmp/$$.
 set -e
-for ARCH in i386 alpha pc98
+for TEST in "i386 512" "i386 4096" "alpha 512" "pc98 512" "pc98 4096"
 do
-	echo "ARCH $ARCH"
-	MD=`mdconfig -a -t malloc -s 2m`
+	set $TEST
+	ARCH=$1
+	SEC=$2
+	echo "ARCH $ARCH SEC $SEC"
+	MD=`mdconfig -a -t malloc -s 2m -S $SEC`
 	trap "exec 7</dev/null; rm -f ${TMP}* ; mdconfig -d -u ${MD}" EXIT INT TERM
 
 	./bsdlabel -m ${ARCH} -r -w $MD auto
 
-	dd if=/dev/$MD of=${TMP}i0 count=16 > /dev/null 2>&1
+	dd if=/dev/$MD of=${TMP}i0 count=1 bs=8k > /dev/null 2>&1
 	if [ "$ARCH" = "alpha" ] ; then
 		dd if=${TMP}i0 of=${TMP}b0 iseek=1 count=15 > /dev/null 2>&1
 	else
@@ -24,6 +27,7 @@ do
 	p
 	s/c:/a:/
 	s/4096/1024/
+	s/512/64/
 	}
 	' ${TMP}l0 > ${TMP}l1
 
@@ -45,30 +49,31 @@ do
 		exit 2
 	fi
 
-	dd if=/dev/$MD of=${TMP}i1 count=16 > /dev/null 2>&1
+	dd if=/dev/$MD of=${TMP}i1 count=1 bs=8k > /dev/null 2>&1
 	sed '
 	/  c:/{
 	p
 	s/c:/a:/
 	s/4096/2048/
+	s/512/256/
 	}
 	' ${TMP}l0 > ${TMP}l2
 
 	./bsdlabel -m ${ARCH} -R $MD ${TMP}l2
-	dd if=/dev/$MD of=${TMP}i2 count=16 > /dev/null 2>&1
+	dd if=/dev/$MD of=${TMP}i2 count=1 bs=8k > /dev/null 2>&1
 
 	exec 7< /dev/${MD}a
 
 	for t in a c
 	do
-		if dd if=${TMP}i2 of=/dev/${MD}$t 2>/dev/null ; then
+		if dd if=${TMP}i2 of=/dev/${MD}$t bs=8k 2>/dev/null ; then
 			echo "PASS: Could rewrite same label to ...$t while ...a open" 1>&2
 		else
 			echo "FAIL: Could not rewrite same label to ...$t while ...a open" 1>&2
 			exit 2
 		fi
 
-		if dd if=${TMP}i1 of=/dev/${MD}$t 2>/dev/null ; then
+		if dd if=${TMP}i1 of=/dev/${MD}$t bs=8k 2>/dev/null ; then
 			echo "FAIL: Could label with smaller ...a to ...$t while ...a open" 1>&2
 			exit 2
 		else
@@ -85,42 +90,42 @@ do
 
 	exec 7< /dev/null
 
-	if dd if=${TMP}i0 of=/dev/${MD}c 2>/dev/null ; then
+	if dd if=${TMP}i0 of=/dev/${MD}c bs=8k 2>/dev/null ; then
 		echo "PASS: Could write missing ...a label to ...c" 1>&2
 	else
 		echo "FAIL: Could not write missing ...a label to ...c" 1>&2
 		exit 2
 	fi
 
-	if dd if=${TMP}i2 of=/dev/${MD}c 2>/dev/null ; then
+	if dd if=${TMP}i2 of=/dev/${MD}c bs=8k 2>/dev/null ; then
 		echo "PASS: Could write large ...a label to ...c" 1>&2
 	else
 		echo "FAIL: Could not write large ...a label to ...c" 1>&2
 		exit 2
 	fi
 
-	if dd if=${TMP}i1 of=/dev/${MD}c 2>/dev/null ; then
+	if dd if=${TMP}i1 of=/dev/${MD}c bs=8k 2>/dev/null ; then
 		echo "PASS: Could write small ...a label to ...c" 1>&2
 	else
 		echo "FAIL: Could not write small ...a label to ...c" 1>&2
 		exit 2
 	fi
 
-	if dd if=${TMP}i2 of=/dev/${MD}a 2>/dev/null ; then
+	if dd if=${TMP}i2 of=/dev/${MD}a bs=8k 2>/dev/null ; then
 		echo "PASS: Could increase size of ...a by writing to ...a" 1>&2
 	else
 		echo "FAIL: Could not increase size of ...a by writing to ...a" 1>&2
 		exit 2
 	fi
 
-	if dd if=${TMP}i1 of=/dev/${MD}a 2>/dev/null ; then
+	if dd if=${TMP}i1 of=/dev/${MD}a bs=8k 2>/dev/null ; then
 		echo "FAIL: Could decrease size of ...a by writing to ...a" 1>&2
 		exit 2
 	else
 		echo "PASS: Could not decrease size of ...a by writing to ...a" 1>&2
 	fi
 
-	if dd if=${TMP}i0 of=/dev/${MD}a 2>/dev/null ; then
+	if dd if=${TMP}i0 of=/dev/${MD}a bs=8k 2>/dev/null ; then
 		echo "FAIL: Could delete ...a by writing to ...a" 1>&2
 		exit 2
 	else
@@ -153,7 +158,7 @@ do
 	fi
 	exec 7> /dev/null
 
-	if dd if=${TMP}i0 of=/dev/${MD}c 2>/dev/null ; then
+	if dd if=${TMP}i0 of=/dev/${MD}c bs=8k 2>/dev/null ; then
 		echo "PASS: Could delete ...a by writing to ...c" 1>&2
 	else
 		echo "FAIL: Could not delete ...a by writing to ...c" 1>&2