While it's good idea to bump up the current default VM template "CentOS 5.5(64-bit) no GUI (KVM)" to a newer version. I doubt the candidate would be CentOS 7. Reason being the supportability of the hypervisor. The candidate should be supported across all the versions of hypervisors that next version of CloudStack would support. To support CentOS 7 we might have to drop support for few of the versions listed below.
From 4.11 documentation the minimum versions supported are, XenServer versions 6.1, 6.2 SP1, 6.5, 7.0, 7.1, 7.2 with latest hotfixes VMware versions 5.0 Update 3, 5.1 Update 3, 5.5 Update 3b, 6.0 Update 2, and 6.5 GA Regards, Sateesh -----Original Message----- From: Gabriel Beims Bräscher <gabrasc...@gmail.com> Reply-To: "dev@cloudstack.apache.org" <dev@cloudstack.apache.org> Date: Wednesday, 11 July 2018 at 00:52 To: dev <dev@cloudstack.apache.org> Subject: Update default template from CentOS 5.5 to CentOS 7 Hello, I would like to propose updating our current default VM template "CentOS 5.5(64-bit) no GUI (KVM)" to a newer version (e.g. CentOS 7). I also think that we could benefit from a wider set of templates offering also Debian, Ubuntu, and Fedora. Cheers, Gabriel. DISCLAIMER ========== This e-mail may contain privileged and confidential information which is the property of Accelerite, a Persistent Systems business. It is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorized to read, retain, copy, print, distribute or use this message. If you have received this communication in error, please notify the sender and delete all copies of this message. Accelerite, a Persistent Systems business does not accept any liability for virus infected mails.