diff --git a/xCAT-server/share/xcat/install/ubuntu/service.tmpl b/xCAT-server/share/xcat/install/ubuntu/service.tmpl
index ca87469ee..ec6ef2d77 100644
--- a/xCAT-server/share/xcat/install/ubuntu/service.tmpl
+++ b/xCAT-server/share/xcat/install/ubuntu/service.tmpl
@@ -131,5 +131,5 @@ d-i preseed/late_command string wget http://`cat /tmp/xcatserver`/install/autoin
      mount -o bind /dev /target/dev; \
      mount -o bind /dev/pts /target/dev/pts -t devpts; \
      mount -o bind /sys /target/sys; \
-     chroot /target /root/post.script
-
+     chroot /target /root/post.script; \
+     cp /target/etc/network/interfaces /etc/network/interfaces