• Describe the issue
  I am using Red Hat Satellite 6.17. I sync the content from EPEL 8, 9, and 10. For EL 9 and EL 10, I defined the repository with the "Complete mirror" policy. For EL 8, when I tried to do that, it refused to sync and threw an error "This repository uses features which are incompatible with 'mirror' sync. Please sync without mirroring enabled." I changed the sync type to "Content only" and the sync completed. I asked the Satellite folks what was happening, and I was told it's because the EL8 EPEL repo is set up to use delta RPMs, but there are no delta RPMs. I was told that since the metadata for the EPEL repo defines delta RPMs and pulp doesn't support them, the Satellite server refuses to sync. Honestly, I don't really understand that, since the EPEL 9 repo also uses delta RPMs and pulp syncs it fine. Maybe something in the way the metadat for EPEL 8 is generated or something?

I checked with Carl W George and he said "it does look like we have drpms disabled in all versions, so i don't know why those still exist. Can you file a releng issue about this? i'll keep looking into it but will need advice from some of the other admins."

• When do you need this? (YYYY/MM/DD)
  No rush, I have a workaround.

• When is this no longer needed or useful? (YYYY/MM/DD)
  n/a

• If we cannot complete your request, what is the impact?
  Low. It just mean that for this one repo, Satellite admins will have to figure out the workaround.