The Red Hat team has published a guide to upgrading from Red Hat Enterprise Linux 7 to version 8. The guide uses tools which help administrators take a snapshot of the existing operating system so that changes can be rolled back should a regression or other problem occur. "Red Hat Enterprise Linux was released a few weeks ago, and organizations may be considering upgrading from RHEL 7 to RHEL 8. In this post, I'll show how to carry out the upgrade process, minimize risks, and leverage the LVM snapshot feature to preserve the original root file system. Thanks to the snapshot, users should be able to go back to the RHEL 7 operating system in the event of any issues after the upgrade." The whole upgrade guide can be found on the Red Hat website.
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