On Fri, Apr 2, 2010 at 2:55 PM, mattias <mj at mjw.se> wrote: > hmm ok but i can upgrade to 5.3? > how can i upgrade to 5.3 but not downgrade to 2.0? If you have the 5.3 media available or are running something like Spacewalk and have "tagged" the set of packages associated with 5.3, then yes, you can upgrade your 5.0 system to 5.3. If you point your 5.0 installation to the existing CentOS update repositories you will get 5.4 with some extra updates. As Robert informed, in a few weeks, this will be 5.5 and some extra updates.