Downloading offline repos fails constantly.

Issue

• We have a system that we are installing RHOSP 16.1 onto. It is an air-gapped system so no Internet access. We created an asset server and we are downloading the required repos so that we can then burn to a DVD and transfer to the air-gapped system. When we perform the "reposync" command it will begin the download and then fail with " No more mirrors to try - All mirrors were already tried without success". We can then restart it and it may or may not get past the rpm it is trying to download. We were able to work through most of the repos with this command: "reposync -a x86_64 -p /osprepos --repoid=rhel-8-for-x86_64-baseos-eus-rpms --releasever=8.2". We also received "Downloading successful, but checksum doesn't match" for many rpms that were downloaded.

• We are downloading through a corporate proxy and we do have the proxy set for each repo being downloaded. This whole process is taking way too long and eating into our budget. Is there something we are missing? Any help would be appreciated. Also, if there is an easier way to get these repos offline we would love to hear about it.

• We have a RHEL 8.2 instance in VirtualBox on our corporate laptop/network.