Comment 3 for bug 1310076

After changing "/etc/maas/preseeds/curtin_userdata" to use default archive not ports.ubuntu.com for hwe-s, `juju add-machine` succeeded.

=== modified file 'maas/preseeds/curtin_userdata'
--- maas/preseeds/curtin_userdata 2014-04-19 18:37:53 +0000
+++ maas/preseeds/curtin_userdata 2014-04-19 20:12:27 +0000
@@ -28,7 +28,7 @@
 power_state:
   mode: reboot

-{{if node.architecture in {'i386/generic', 'amd64/generic'} }}
+{{if node.architecture in {'i386/generic', 'amd64/generic', 'amd64/hwe-s'} }}
 apt_mirrors:
   ubuntu_archive: http://{{main_archive_hostname}}/{{main_archive_directory}}
   ubuntu_security: http://{{main_archive_hostname}}/{{main_archive_directory}}