Re: [CentOS] Regarding upgrade from CentOS .5.5 to CentOS 7

On 05/05/16 01:13 AM, Venkateswara Rao Dokku wrote:

Hi,

I wanted to upgrade from centOS 5.5 to CentOS 7 without losing the data.

Is there any upgrade path available?

or what is the proper way to do it without affecting the existing config?

Thnaks for the help

So much changed from 5 to 7 that a re-install is almost certainly the way to go. How exactly you port your config depends entirely on what programs you are talking about.

The best idea is to create a virtual machine (or install centos 7 on spare hardware), figure out how to configure the applications and the process to restore the data from backups. Once you know what to do (and have documented it), reinstall.