[CentOS] Allow updates but not upgrades

Thu May 10 12:49:40 UTC 2012
Dennis Jacobfeuerborn <dennisml at conversis.de>

On 05/10/2012 08:55 AM, John R Pierce wrote:
> On 05/09/12 10:36 PM, Gregory Machin wrote:
>> I have a requirement where I need machines to only upgrade to even
>> numbered sub releases eg: 6.0 , 6.2, 6.4 and only on my approval.
> 
> thats a rather strange requirement.  6.1 is 6.0 with updates rolled up.
> 
> a more sane requirement would be to only allow pre-tested updates, which 
> you'd do by testing the updates on a staging machine, then posting them 
> to your own internal yum repository which your production machines would 
> update from.
> 

This requirement sounds suspiciously like it was made for software that
uses the "even numer = stable release, odd number = development release"
versioning method. Since that doesn't apply here the requirement doesn't
make sense.

Regards,
  Dennis