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. -- john r pierce N 37, W 122 santa cruz ca mid-left coast