HowTo: Upgrade Salt-Minions and Don't Lose Them

How to safely upgrade the salt-master and salt-minions with the proper restart of the salt-minion services and without losing communication.

Upgrading CentOS/RHEL from Minimal Installation with YUM

If you have installed CentOS/RHEL Minimal server installation, you may have lots of troubles with not installed packages.

There is a way to install all packages, required by a Basic Server, using yum groupinstall command.