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However it is quite easy to convert CentOS to RHEL, so here are steps that some TDS users used and shared with us.

Compatibility check

OSIs it supported by these instructions?Comments
CentOS 7 >> RHEL 7YES
CentOS 8 Stream >> RHEL 8YES
CentOS 9 Stream >> RHEL 9


It is not supported by Convert2RHEL, but official docs mention something like this:


Can CentOS Stream 8 be upgraded to CentOS Stream 9 or RHEL 9?

Possibly, but the Convert2RHEL utility will not be used. Instead, the LEAPP utility provides advanced and automated in-place upgrades from RHEL 7 to RHEL 8 at scale.


License order

To be able to finish conversion successfully in as short time frame as possible it is recommended to get the license and RHSM credentials upfront. Contact procurement that can help with the process. Or setup account on Red Hat Customer Portal and purchase and manage your subscriptions there.