On Tue, 2016-11-08 at 08:27 -0600, Dipal Bhatt wrote:
..... So, this is for a friend of mine, and I have been told that they will not currently consider updating their userland from 6.3 to 6.8 but only selected few packages. The picture seems to be that their company runs a lot of apps on 6.3 userland and might have some specific dependencies, etc., but more importantly, this environment has been running in customers' environment for quite some time esp 1000s of customers, so updating system properly is not easily feasible for this scenario.
If everyone is running STANDARD CENTOS there should be *no* problems updating to the latest C 6.8 version.
(1) Save one complete installation.
(2) Install it on a spare machine.
(3) Change /etc/sysconfig/network-scripts/ifcfg-eth0 if necessary.
(4) Do a: yum update
(5) Test the applications
(6) Wait a few weeks and if still no problems, then upgrade the others.