up2date command was part of RHEL v4.x or older version.
Login as the root user to install and update the system.
Red Hat Enterprise Linux 7 (RHEL 7) is the first major release of RHEL to allow in-place upgrades from the previous RHEL major release (RHEL 6).
An in-place upgrade offers a way of upgrading a system to a new major release of Red Hat Enterprise Linux by replacing the existing operating system.
Loading "installonlyn" plugin Loading "security" plugin Setting up repositories Reading repository metadata in from local files Installed Packages perl.i386 4:5.8.8-10.el5_0.2 installed perl-Archive-Tar.noarch 1.30-1.fc6 installed perl-BSD-Resource.i386 1.28-1.fc6.1 installed perl-Compress-Zlib.i386 1.42-1.fc6 installed perl-DBD-My SQL.i386 3.0007-1.fc6 installed perl-DBI.i386 1.52-1.fc6 installed perl-Digest-HMAC.noarch 1.01-15 installed perl-Digest-SHA1.i386 2.11-1.2.1 installed perl-HTML-Parser.i386 3.55-1.fc6 installed .....
For Redhat enterprise Linux operating systems, you need to get updates from RHN via Redhat Network Satellite/proxy servers (usually used by big hosting/ISPs or larget RHEL installation setups) to install critical and non-critical security updates as well as binary packages.
This RHEL 6 to RHEL 7 upgrade procedure is fully supported if your Red Hat Enterprise Linux system meets the following criteria: The Preupgrade Assistant (preupg command) lets you check for potential problems you might encounter with a Red Hat Enterprise Linux 6 to Red Hat Enterprise Linux 7 upgrade before any changes to your system are made.