8.3. Upgrading from RHEL 6.X to RHEL 7.X
Install migration toolInstall the tool to perform the migration from RHEL 6 to RHEL 7:
# yum install redhat-upgrade-tool # yum install yum-utils
Disable all repositoriesDisable all the enabled repositories:
# yum-config-manager --disable \*
Download latest RHEL 7 ISOVisit the Software & Download Center in the Red Hat Customer Service Portal (https://access.redhat.com/downloads) to obtain the latest RHEL 7 ISO image file. Use a valid Red Hat Subscription to download the full installation files, obtain a free evaluation installation, or follow the links in this page to purchase a new Red Hat Subscription.To download the RHEL 7 installation files using a Red Hat Subscription or a Red Hat Evaluation Subscription, perform the following steps:
- Visit the Red Hat Customer Service Portal at https://access.redhat.com/login and enter your user name and password to log in.
- Click Downloads to visit the Software & Download Center.
- In the Red Hat Enterprise Linux area, clickto download the latest version of the software.
Upgrade to RHEL 7 using ISOUpgrade to RHEL 7 using the Red Hat upgrade tool and reboot after the upgrade process is completed:
# redhat-upgrade-tool --iso RHEL7_ISO_filepath --cleanup-post # reboot
ImportantThe upgrade process is time-cosuming depending on your system's configuration and amount of data.