Ansible: Upgrading Debian with Ad-Hoc commands
Upgrading an inventory of three servers using ansible, I can use the following command to make this happen:
apt-get
Downgrading drush with apt-get
We are running an Ubuntu 12.04 server with the Aegir hosting system and recently upgraded the server software with apt-get. The next day we noticed that the cron queue wasn't running, so we began to investigate. It turns out that the Drush package for Ubuntu had recently been upgraded to Drush 5.9.1, which is incompatible with Aegir 1.x version.