[CentOS] Upgrade from CentOS 6.x to 7

Tue Sep 9 16:39:07 UTC 2014
John R Pierce <pierce at hogranch.com>

On 9/9/2014 9:33 AM, Mike Watson wrote:
> Can I directly upgrade (update?) from my current 6.5 box to version 7?
> Or, must I wipe my drives and install from scratch?

I wouldn't.   redhat does have an upgrade script for headless 
server-only type configurations, but there's just so much room for 
'wrong', with newer versions of all the system components like python, 
apache, libc and other libraries, postgresql database server, etc etc etc.

I would save /home, a copy of /etc/passwd,shadow and any other specific 
configuration files, dump any databases, apache configurations, etc etc, 
then do a clean install and piece that stuff back together.

john r pierce                                      37N 122W
somewhere on the middle of the left coast