[CentOS] upgrading 7.5 ==> 7.6

Thu Dec 20 15:03:44 UTC 2018
Chris Beattie <cbeattie at unitrends.com>

> -----Original Message-----
> From: CentOS <centos-bounces at centos.org> On Behalf Of Fred Smith
> I have, as I said, several other machines to  upgrade, too, some of them
> a couple of VMs (in virtualbox) and at work several other VMS as well as
> I'd appreciate any advice I can get on how to get these systems upgraded
> without breaking them.

Can you clone the VMs first?  That will give you machines to bang on until you've hammered out all the bumps in the upgrade process.  Then for the production VM, take a pre-upgrade snapshot you can roll back to when the process finds a new way to go sideways.