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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 Toolto 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 Assistantand the
Red Hat Upgrade Toolare 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
csh.localfiles for overrides of environment variables from the
/etc/profile.ddirectory, 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)