diff --git a/tools/xen/functions b/tools/xen/functions
index 4e9fede..8c674dc 100644
--- a/tools/xen/functions
+++ b/tools/xen/functions
@@ -179,7 +179,8 @@
     local bridge_or_net_name
     bridge_or_net_name=$1
 
-    ifconfig $(bridge_for "$bridge_or_net_name") | grep "inet addr" | cut -d ":" -f2 | sed "s/ .*//"
+    ip -4 addr show $(bridge_for "$bridge_or_net_name") |\
+    awk '/inet/{split($2, ip, "/"); print ip[1];}'
 }
 
 function xenapi_is_listening_on {
diff --git a/tools/xen/install_os_domU.sh b/tools/xen/install_os_domU.sh
index b49347e..e24d9ed 100755
--- a/tools/xen/install_os_domU.sh
+++ b/tools/xen/install_os_domU.sh
@@ -193,7 +193,10 @@
             TMP_DIR=/tmp/temp.$RANDOM
             mkdir -p $TMP_DIR
             mount -o loop $TOOLS_ISO $TMP_DIR
-            DEB_FILE=$(ls $TMP_DIR/Linux/*amd64.deb)
+            # the target deb package maybe *amd64.deb or *all.deb,
+            # so use *amd64.deb by default. If it doesn't exist,
+            # then use *all.deb.
+            DEB_FILE=$(ls $TMP_DIR/Linux/*amd64.deb || ls $TMP_DIR/Linux/*all.deb)
             cp $DEB_FILE $HTTP_SERVER_LOCATION
             umount $TMP_DIR
             rmdir $TMP_DIR