diff --git a/scripts/zpios.sh b/scripts/zpios.sh
index 5ba97b0a68..bfce363a81 100755
--- a/scripts/zpios.sh
+++ b/scripts/zpios.sh
@@ -158,6 +158,7 @@ if check_modules; then
 	fi
 fi
 
+# Wait for device creation
 while [ ! -c /dev/zpios ]; do
 	sleep 1
 done
@@ -181,12 +182,18 @@ echo
 date
 zpios_start
 zpios_stop
-print_stats
+
+if [ ${VERBOSE} ]; then
+	print_stats
+fi
 
 # Destroy the zpool configuration
 ./zpool-create.sh ${VERBOSE_FLAG} -p ${ZPOOL_NAME} -c ${ZPOOL_CONFIG} -d || exit 1
 
-# Unload the test module stack
+# Unload the test module stack and wait for device removal
 unload_modules
+while [ -c /dev/zpios ]; do
+	sleep 1
+done
 
 exit 0
diff --git a/scripts/zpool-config/file-raidz.sh b/scripts/zpool-config/file-raidz.sh
index 6867489079..e7e4a46358 100644
--- a/scripts/zpool-config/file-raidz.sh
+++ b/scripts/zpool-config/file-raidz.sh
@@ -16,8 +16,8 @@ zpool_create() {
 			die "Error $? creating ${FILE}"
 	done
 
-	msg ${CMDDIR}/zpool/zpool create raidz ${ZPOOL_NAME} ${FILES}
-	${CMDDIR}/zpool/zpool create raidz ${ZPOOL_NAME} ${FILES} || exit 1
+	msg ${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz ${FILES}
+	${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz ${FILES} || exit 1
 }
 
 zpool_destroy() {
diff --git a/scripts/zpool-config/file-raidz2.sh b/scripts/zpool-config/file-raidz2.sh
index 09b20e4c9c..1dd97d3eea 100644
--- a/scripts/zpool-config/file-raidz2.sh
+++ b/scripts/zpool-config/file-raidz2.sh
@@ -16,8 +16,8 @@ zpool_create() {
 			die "Error $? creating ${FILE}"
 	done
 
-	msg ${CMDDIR}/zpool/zpool create raidz2 ${ZPOOL_NAME} ${FILES}
-	${CMDDIR}/zpool/zpool create raidz2 ${ZPOOL_NAME} ${FILES} || exit 1
+	msg ${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz2 ${FILES}
+	${CMDDIR}/zpool/zpool create ${ZPOOL_NAME} raidz2 ${FILES} || exit 1
 }
 
 zpool_destroy() {
diff --git a/scripts/zpool-config/lo-raid0.sh b/scripts/zpool-config/lo-raid0.sh
index cecdf86502..84c355266c 100644
--- a/scripts/zpool-config/lo-raid0.sh
+++ b/scripts/zpool-config/lo-raid0.sh
@@ -14,7 +14,7 @@ zpool_create() {
 		DEVICE=`/sbin/losetup -f`
 		msg "Creating ${FILE} using loopback device ${DEVICE}"
 		rm -f ${FILE} || exit 1
-		dd if=/dev/zero of=${FILE} bs=1024k count=256 status=noxfer &>/dev/null ||
+		dd if=/dev/zero of=${FILE} bs=1024k count=256 &>/dev/null ||
 			die "Error $? creating ${FILE}"
 		losetup ${DEVICE} ${FILE} ||
 			die "Error $? creating ${FILE} -> ${DEVICE} loopback"
@@ -30,7 +30,7 @@ zpool_destroy() {
 	${CMDDIR}/zpool/zpool destroy ${ZPOOL_NAME}
 
 	for FILE in ${FILES}; do
-		DEVICE=`/sbin/losetup -a | grep ${FILE} | head -n1 | cut -f1 -d:`
+		DEVICE=`/sbin/losetup -a | grep ${FILE} | head -n1|cut -f1 -d:`
 		msg "Removing ${FILE} using loopback device ${DEVICE}"
 		losetup -d ${DEVICE} ||
 			die "Error $? destroying ${FILE} -> ${DEVICE} loopback"