Comment 4 for bug 1693361

Some research on this indicates:

* `/etc/init.d/rc` is set to run services in parallel via `startpar`
* However there is a portion with concurrency disabled in the same file
* Assuming `cloud-init` was added as part of the non-concurrent part of the file would this prevent the issue?
* `aptdcon` along with `aptd` appears to allow various `apt-get` operations in a queue like system. Unfortunately I can't tell what happens when a standard `apt-get` package install happens while `aptd` is doing its thing. Not only that but it would increase dependencies on cloud images.