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Description of problem:
Currently createrepo does not handle modules information (modules.yaml) and as a result there are problems with repositories created from RHEL8 packages. Modules.yaml must be handled separately at the moment

Version-Release number of selected component (if applicable):
RHEL 8.3
createrepo_c-0.16.2-2.el8.x86_64.rpm

How reproducible:
everytime

Steps to Reproduce:
1. Reposync RHEL8 repo:

dnf reposync --newest-only --repoid=rhel-8-for-x86_64-appstream-rpms --download-path=/var/www/html/rhel8 --downloadcomps --download-metadata 
createrepo -v /var/www/html/rhel8/rhel-8-for-x86_64-appstream-rpms/ -g comps.xml

2. Enable new repo

3. Try updating packages from the new repo

Actual results:
`dnf update` shows packages conflicts

Expected results:


Additional info:
The problem arises because there is no information about modules in rpms. So createrepo does not see the information about modules and so is not able to pass this information to the system.

I am not 100% sure but the issue sounds to me related or can be resolved by a new dnf plugin modulesync. See Bug 1868047 - [RFE] A module-granularity synchronization tool (similar to reposync) .

Please can you provide a feedback whether modulesync approach is resolving the issue?

I'm just looking into something related, maybe the same issue.
We had a further fix in rhel8.5GA with bz1801747 getting
solved.  Did your customer rhel8.5 code base?

I also notice that with
https://access.redhat.com/solutions/4888921 we
described how to create own repos including module details,
based on reposync'ed channels.

I see we have nothing as of today for just single RPMs,
and will after discussing the best way in bz1801747
get something together in kbase, maybe extend
https://access.redhat.com/solutions/4907601 .

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days