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Systems Administrator IV
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I'm currently running my cluster on RHEL 6.10, which will be going EOL on November 31, 2020. I had put in a support ticket back in 2018 asking if we could use the redhat-upgrade-tool to upgrade the head node and compute images to RHEL 7.x. The answer back then was "not recommended" and to install a second head node into the cluster with a newer OS, transfer services to it, and then rebuild the compute images. Just wanted to see if this is still the case or if someone has successfully upgraded the OS using the redhat-upgrade-tool.

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