Ioannis Vranos wrote: > I forgot that you have the x86_64 version, so the upgrade process becomes: > Keep in mind you can easily upgrade your system from 4.0 to 4.1: 1. rpm -Uvh ftp://ftp.scientificlinux.org/linux/scientific/41/x86_64/SL/RPMS/yum-conf-41-4.SL.noarch.rpm > 2. yum update yum > > 3. yum upgrade