diff -Nru cloud-init-0.7.5/debian/changelog cloud-init-0.7.5/debian/changelog
--- cloud-init-0.7.5/debian/changelog	2016-02-05 20:36:36.000000000 +0000
+++ cloud-init-0.7.5/debian/changelog	2016-03-03 15:48:07.000000000 +0000
@@ -1,3 +1,12 @@
+cloud-init (0.7.5-0ubuntu1.17) trusty; urgency=medium
+
+  * Microsoft Azure:
+    - d/patches/lp-1551419-azure-handle-flipped-uuid-endianness.patch: Handle
+      cases where the endianness of the DMI UUID used for the instance ID has
+      changed since last boot.(LP: #1551419)
+
+ -- Daniel Watkins <daniel.watkins@canonical.com>  Wed, 02 Mar 2016 14:23:18 +0000
+
 cloud-init (0.7.5-0ubuntu1.16) trusty; urgency=medium
 
   * Joyent Smart DataOS:
diff -Nru cloud-init-0.7.5/debian/patches/lp-1551419-azure-handle-flipped-uuid-endianness.patch cloud-init-0.7.5/debian/patches/lp-1551419-azure-handle-flipped-uuid-endianness.patch
--- cloud-init-0.7.5/debian/patches/lp-1551419-azure-handle-flipped-uuid-endianness.patch	1970-01-01 00:00:00.000000000 +0000
+++ cloud-init-0.7.5/debian/patches/lp-1551419-azure-handle-flipped-uuid-endianness.patch	2016-03-03 15:48:07.000000000 +0000
@@ -0,0 +1,61 @@
+--- a/cloudinit/sources/DataSourceAzure.py
++++ b/cloudinit/sources/DataSourceAzure.py
+@@ -256,11 +256,57 @@
+     return len(fnmatch.filter(os.listdir(mp), '*[!cdrom]*'))
+ 
+ 
++def _batch_gen(data, batch_size):
++    # Generate batches of batch_size from data
++    for i in range(0, len(data), batch_size):
++        yield data[i:i+batch_size]
++
++
++def _get_reversed_endianness_uuid(uuid):
++    uuid_parts = uuid.split('-')
++    for part_number in [0, 1, 2]:
++        original_part = uuid_parts[part_number]
++        hex_bytes = _batch_gen(original_part, 2)
++        reversed_endianness_part = ''.join(reversed(list(hex_bytes)))
++        uuid_parts[part_number] = reversed_endianness_part
++    return '-'.join(uuid_parts)
++
++
++def _get_last_boot_instance_uuid():
++    return util.read_file_or_url(
++        '/var/lib/cloud/data/instance-id').contents.strip()
++
++
+ def get_instance_id():
+     """
+     Read the instance ID from dmi data
++
++    If the reported UUID is the previous instance ID with endianness changed
++    (as per LP #1551419), then that previous instance ID will be used.
+     """
+-    return util.read_dmi_data('system-uuid')
++    reported_instance_uuid = util.read_dmi_data('system-uuid')
++    LOG.debug('Reported instance UUID: %s', reported_instance_uuid)
++    if not os.path.exists('/var/lib/cloud/data/instance-id'):
++        LOG.debug('No last-boot instance ID')
++        # This is first boot of a fresh instance
++        return reported_instance_uuid
++    last_boot_instance_uuid = _get_last_boot_instance_uuid()
++    LOG.debug('Current instance UUID: %s', last_boot_instance_uuid)
++    if last_boot_instance_uuid == reported_instance_uuid:
++        LOG.debug('Reported UUID is unchanged')
++        return reported_instance_uuid
++    reversed_endianness_uuid = _get_reversed_endianness_uuid(
++        reported_instance_uuid)
++    LOG.debug('Reported instance UUID with reversed endianness: %s',
++              reversed_endianness_uuid)
++    if last_boot_instance_uuid == reversed_endianness_uuid:
++        # The endianness of the instance UUID has changed, keep using the
++        # last_boot UUID
++        LOG.debug('Reported UUID is last-boot UUID with endianness reversed;'
++                  ' continuing to use last-boot instance ID')
++        return last_boot_instance_uuid
++    LOG.debug('Reported UUID is different; using it as instance ID.')
++    return reported_instance_uuid
+ 
+ 
+ def find_fabric_formatted_ephemeral_part():
diff -Nru cloud-init-0.7.5/debian/patches/series cloud-init-0.7.5/debian/patches/series
--- cloud-init-0.7.5/debian/patches/series	2016-02-05 20:36:36.000000000 +0000
+++ cloud-init-0.7.5/debian/patches/series	2016-03-03 15:48:07.000000000 +0000
@@ -20,3 +20,4 @@
 lp-1506244-azure-ssh-key-values.patch
 lp-1506187-azure_use_unique_vm_id.patch
 lp-1540965-SmartOS-Add-support-for-Joyent-LX-Brand-Zones.patch
+lp-1551419-azure-handle-flipped-uuid-endianness.patch