On Fri, Mar 4, 2011 at 8:31 AM, Rainer Traut <tr.ml at gmx.de> wrote: > Am 04.03.2011 13:50, schrieb Nico Kadel-Garcia: > >> Re-install, not upgrade. Components with the same name compiled for >> different systems will occur, and may wind up presenting fascinating >> incompatibilities. > > Can you elaborate? > RHEL5's and C5's packages were known to be interchangeable. > Without having tried it RHEL6/SL6 this is FUD. > >> >> I've written tools to turn an RHEL 5 box to CentOS 5, and back. It's a >> pain and I don't recommend it. > > For how many boxes do you need to do this? > I did this with some boxes and never run into issues. > > Rainer I don't need to, anymore. I did it as a proof of concept for a few hosts of different architecute, offering to do it for a Beowulf cluster of roughly 100 hosts while we were arguing about licensing costs with upper management. This was a ways back, but the integration of yum for RHEL 4 was a particular adventure.