Two days back, i wrote Step by step installation CentOS 7 ; which is the clean installation of OS. As per the CentOS 7 announcement, it is possible to upgrade the CentOS 6 to CentOS 7 with the help of redhat-upgrade-tool. CentOS has not yet posted any official document on upgrading the CentOS 6, since … Continue reading Upgrade from CentOS 6 to CentOS 7