On Tuesday, June 07, 2011 09:43:24 AM Nicolas Ross wrote: > I switch a RHEL machine in EL6 to scientific linux a while ago, and I > suppose it's the exact same thing for Centos. [snip process] You do realize that you didn't replace the RHEL binaries, right? To completely switch you need to replace all the binaries with the equivalent ones from either SL6 or C6 (when it's released). Not just the logos; there are other changes (kernel signing, for instance). That's what 'yum distro-sync full' would do (once you've patched it in).