KVM vmbuilder fails

Setting the dpkg option for force-confnew also seams to work:

patch /usr/lib/python2.7/dist-packages/VMBuilder/plugins/ubuntu/dapper.py<<EOT
@@ -72,7 +72,7 @@
             self.call_hook('fix_ownership', manifest)

     def update(self):
-        self.run_in_target('apt-get', '-y', '--force-yes', 'dist-upgrade',
+        self.run_in_target('apt-get', '-y', '--force-yes', '--option=Dpkg::Options::=--force-confnew', 'dist-upgrade',
                            env={ 'DEBIAN_FRONTEND' : 'noninteractive' })

     def install_authorized_keys(self):
EOT

I am now having the same problem with an identical setup from 1 week ago (9/28/16) when there was no error. My install is almost the same as the op, except that I am using amd64.

I offer the solution that I used as a band-aid until the underlying bug is fixed.

SOLUTION:

1. change the word 'dist-upgrade' to 'update' in
    /usr/lib/python2.7/dist-packages/VMBuilder/plugins/ubuntu/dapper.py

 2. delete /usr/lib/python2.7/dist-packages/VMBuilder/plugins/ubuntu/dapper.pyc

Now rerun vmbuilder. I still got a few errors/warns, but it built just fine.

Recognize this did not fix the underlying problem, but it does let you use for now: vmbuilder with 16.04.