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Chapter 9. RHEL for Edge
Review the most notable changes to RHEL for Edge between RHEL 9 and RHEL 10.
- Greenboot reimplementation
-
RHEL 10.2 includes
greenboot-rs, a reimplementation of the greenboot health check framework. The new version improves maintainability and reliability while remaining compatible with existing health checks. - New FDO Implementation in RHEL 10.2
-
A new version of the FIDO Device Onboarding (FDO) protocol is available and fully supported. The
go-fdo-clientandgo-fdo-serverRPMs provide secure, automated, zero-touch provisioning for RHEL for Edge systems. - FDO RPMs and container images available as a Technology Preview
- RHEL 10.2 continues to provide the original FIDO Device Onboarding (FDO) implementation as a Technology Preview.
- RHEL for Edge now uses image mode for RHEL to create edge artifacts
- Starting from RHEL 10, RHEL for Edge supports using image mode to build images, instead of using RHEL image builder.
- You can now deploy image mode for RHEL systems by using FDO
- Support for deploying an image mode for RHEL systems by using FDO the FIDO Device Onboarding (FDO) process to deliver the configuration to this system is now available.
- The Ignition is no longer fully supported for RHEL for Edge images created with image mode for RHEL
- The Ignition tool, used to inject the user configuration into the Simplified Installer, AMI, and VMDK RHEL for Edge images types at the early stage of the boot process, has been removed and has no replacement.
- Migrating RHEL for Edge 9 systems image mode in RHEL 10 requires rebuilding the
initramfsdirectories -
RHEL for Edge systems using RHEL 9 that were installed by using a
simplified-installeror arawdisk image have their root disk encrypted with LUKS that uses a null cipher. When migrating these systems to using image mode in RHEL 10, you must include specificclevispackages in the container image and regenerate theinitramfsdirectories as part of the container image build process.
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