Chapter 4. General Updates
In-place upgrade from Red Hat Enterprise Linux 6 to Red Hat Enterprise Linux 7
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. To perform an in-place upgrade, use the
Preupgrade Assistant
, a utility that checks the system for upgrade issues before running the actual upgrade, and that also provides additional scripts for the Red Hat Upgrade Tool
. When you have solved all the problems reported by the Preupgrade Assistant
, use the Red Hat Upgrade Tool
to upgrade the system.
For details regarding procedures and supported scenarios, see https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Migration_Planning_Guide/chap-Red_Hat_Enterprise_Linux-Migration_Planning_Guide-Upgrading.html and https://access.redhat.com/solutions/637583.
Note that the
Preupgrade Assistant
and the Red Hat Upgrade Tool
are available in the Red Hat Enterprise Linux 6 Extras channel, see https://access.redhat.com/support/policy/updates/extras. (BZ#1432080)
The setup package now provides a way to override unpredictable environment settings
The setup package now provides and sources the
sh.local
and csh.local
files for overrides of environment variables from the /etc/profile.d
directory, which is sourced last. Previously, an undefined order could result in unpredictable environment settings, especially when multiple scripts changed the same environment variable. (BZ#1344007)