+# Keep these to enhance the usefulness of debug output.
+ls -l /dev
+cat /proc/mounts
+lvm pvs
+lvm vgs
+lvm lvs
+ifconfig
+netstat -rn
+lsmod
+#ping -n -v -c 5 10.0.2.2
+#ping -n -v -c 5 10.0.2.4
+
+# Improve virtio-blk performance (RHBZ#509383).
+for f in /sys/block/vd*/queue/rotational; do echo 1 > $f; done
+