[meta] Issues installing via Drush

When installing Commons from command line via Drush, or even using Aegir, Commons has a lot of problems.

commons_groups_get_group_content_entity_types() issues

#2203231: Warnings in commons_trusted_contacts during drush site install

WD message_notify: Could not send message using @title to user ID #

#2284859: WD message_notify: Could not send message using @title to user ID #

PHP Fatal error: Call to a member function flag() on a non-object
#1906678: D7 CLI Installation fails: Error: Call to a member function flag() on a non-object in commons_follow_group.module,

If you have used a modified version of Drush (as below making it possible to disable checkboxes) to allow disabling of the Dummy content checkbox during installation you will get a nasty Fatal error. (Possibly not the only cause).

PHP Fatal error: Call to a member function flag() on a non-object in /.../profiles/commons/modules/commons/commons_follow/commons_follow_group/commons_follow_group.module on line 105

Not connected to the Acquia network

#2278317: Drush SI: Connect your site to a valid subscription on the Acquia Network to send SPI data

DRUSH SI and Checkboxes:

Drush itself doesn't currently have the ability to set a checkbox that is default on to off via Drush SI, which means currently you cannot turn off the Acquia connector or Demo content during a Drush SI install.

This isn't necessarily an issue with Commons, but I have seen it reported once or twice with people trying to figure it out.

I've created an issue with a PR for Drush that allows you to pass NULL as the value of Checkboxes ensuring that they are marked as unchecked.

https://github.com/drush-ops/drush/issues/561

Default pictures and demo content pictures not installed correctly

#2278847: Derivatives can't be created on install with Drush and Aegir or when no vhost is available yet