On 12/01/16 21:20, Ulrich Leodolter wrote: > I have upgraded a couple of C6 machines last weeks, it works much better > with 7.2 now, at least the system boots and ssh works :) > > The grep issue can be fixed after upgrade very simply: > > $ yum downgrade grep First off I *do not* support the use of the upgrade tool under any circumstances, just in case I haven't made my position clear in the past. That said, you'll probably do a more thorough job of fixing all the mistakes made by the upgrade too if you follow it up with: yum distro-sync This should fix grep and any other package that is still left on the el6 version. Peter