On Sun, 7 Jun 2009, Albert wrote: > Hi, > > If I now installed centos 5.3 and for 6 month I buying support from RHEL > I can change 5.3 to rhel 5.3? It's possible? No. The versions for Centos are always higher then RHEL. Therefore unless the updates RHEL versions happen to be greater then the existing centos versions you will never get the updates. Regards, -- Tom Diehl tdiehl at rogueind.com Spamtrap address mtd123 at rogueind.com