diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
index 0b70a13..6a8aedf 100644
--- a/nova/virt/libvirt/driver.py
+++ b/nova/virt/libvirt/driver.py
@@ -376,8 +376,9 @@ MIN_LIBVIRT_BLOCKJOBINFO_VERSION = (1, 1, 1)
 # this version is only used for messaging)
 MIN_LIBVIRT_BLOCKJOB_RELATIVE_VERSION = (1, 2, 7)
 # Libvirt version 1.2.17 is required for successfull block live migration
-# of vm booted from image with attached devices
-MIN_LIBVIRT_BLOCK_LM_WITH_VOLUMES_VERSION = (1, 2, 17)
+# of vm booted from image with attached devices. Selective block device
+# migration feature was backported to libvirt 1.2.16 for ubuntu willy.
+MIN_LIBVIRT_BLOCK_LM_WITH_VOLUMES_VERSION = (1, 2, 16)
 # libvirt discard feature
 MIN_LIBVIRT_DISCARD_VERSION = (1, 0, 6)
 MIN_QEMU_DISCARD_VERSION = (1, 6, 0)