Hello @César Marco Hurtado Ramos Thank for reaching out to us through Microsoft Q&A platform. Happy to answer any question you may have!
For installing the Azure Site Recovery (ASR) Agent Mobility on Red Hat Enterprise Linux (RHEL), understanding the supported kernel versions is crucial for compatibility. The kernel version requirement is not explicitly specified for RHEL 7.x in the document - https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-support-matrix#supported-ubuntu-kernel-versions-for-azure-virtual-machines. However, you should be able to use the ASR agent on the latest stable kernel version supported by your RHEL 7.9 system this is confirmed by the product team.
For RHEL 8.4 and newer versions: The minimum kernel version required is 4.18.0-305.30.1.el8_4.x86_64
or higher.
FYI: I have relayed this feedback for doc clarity to the content team. The document will be reviewed and updated as appropriate.
Hope this helps. Please wrote back to us if you have any further questions.
If the response helped, do "Accept Answer" and up-vote it