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8.3. Upgrading from RHEL 6.X to RHEL 7.X
Install migration tool
Install the tool to perform the migration from RHEL 6 to RHEL 7:yum install redhat-upgrade-tool yum install yum-utils
# yum install redhat-upgrade-tool # yum install yum-utilsCopy to Clipboard Copied! Toggle word wrap Toggle overflow Disable all repositories
Disable all the enabled repositories:yum-config-manager --disable \*
# yum-config-manager --disable \*Copy to Clipboard Copied! Toggle word wrap Toggle overflow Download latest RHEL 7 ISO
Visit 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, click to download the latest version of the software.
Upgrade to RHEL 7 using ISO
Upgrade 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
# redhat-upgrade-tool --iso RHEL7_ISO_filepath --cleanup-post # rebootCopy to Clipboard Copied! Toggle word wrap Toggle overflow Important
The upgrade process is time-cosuming depending on your system's configuration and amount of data.
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