When the image definitions were updated to the new framework, I failed
to update the dracut modules for Anaconda installers to match the
existing ones.
The changes in the manifest are at commit
c4af0a1886.
The nvdimm module and the additional drivers were removed.
The nvdimm module in particular is required for http boot but should
only be specified for RHEL 9. In RHEL 8 it is part of the default set
of modules.
See 02bb7a0b4f and
dc95382ba3 for the original commits that
introduced these changes.
2f96cc7051