Index: trunk/packages/sipb-xen-guest-installer/files/usr/sbin/sipb-xen-install
===================================================================
--- trunk/packages/sipb-xen-guest-installer/files/usr/sbin/sipb-xen-install	(revision 641)
+++ trunk/packages/sipb-xen-guest-installer/files/usr/sbin/sipb-xen-install	(revision 642)
@@ -17,5 +17,5 @@
 fi
 
-VOLUME=/dev/mapper/xenvg-d_${HOSTNAME}_hda
+VOLUME=/dev/mapper/xenvg-d_$(echo "$HOSTNAME" | sed -e 's/-/--/g')_hda
 
 # If this script is interrupted, it may not clean up after itself.