Hi, There is an upgrade problem with the latest qemu-kvm package for CentOS-6.4: Upgrading from qemu-kvm-0.12.1.2-2.355.el6_4_4.1.x86_64.rpm to the latest qemu-kvm-0.12.1.2-2.355.el6_4.2.x86_64.rpm package is not possible with "yum update". The problem is: qemu-kvm-0.12.1.2-2.355.el6_4_4.1.x86_64.rpm This package contains el6_4_4.1 instead of el6_4.1. Best regards, Morten