diff --git a/scripts/zpool-config/lo-raid0.cfg b/scripts/zpool-config/lo-raid0.cfg
index f306d57e9f..75a411c9b5 100644
--- a/scripts/zpool-config/lo-raid0.cfg
+++ b/scripts/zpool-config/lo-raid0.cfg
@@ -8,10 +8,12 @@ DEVICES="/tmp/zpool-vdev0  \
          /tmp/zpool-vdev2  \
          /tmp/zpool-vdev3  \
          /tmp/zpool-vdev4" 
+DEVICE_SIZE=512
 
 for DEV in ${DEVICES}; do
+	msg "Creating ${DEV} loopback device (${DEVICE_SIZE} Mib)"
 	rm -f ${DEV} || exit 1
-	dd if=/dev/zero of=${DEV} bs=1024k count=512 || exit 1
+	dd if=/dev/zero of=${DEV} bs=1024k count=${DEVICE_SIZE} &>/dev/null || exit 1
 	losetup `/sbin/losetup -f` ${DEV} || exit 1
 done