Use this command line script to pin Rocky repository urls to 8.4
sudo sed -e 's|^mirrorlist=|#mirrorlist=|g' \
-e 's|^#baseurl=http://dl.rockylinux.org/$contentdir/$releasever|baseurl=https://dl.rockylinux.org/vault/rocky/8.4|g' \
-i.bak \
/etc/yum.repos.d/Rocky-AppStream.repo \
/etc/yum.repos.d/Rocky-BaseOS.repo \
/etc/yum.repos.d/Rocky-Devel.repo \
/etc/yum.repos.d/Rocky-Extras.repo \
/etc/yum.repos.d/Rocky-HighAvailability.repo \
/etc/yum.repos.d/Rocky-Media.repo \
/etc/yum.repos.d/Rocky-Plus.repo \
/etc/yum.repos.d/Rocky-PowerTools.repo \
/etc/yum.repos.d/Rocky-RT.repo \
/etc/yum.repos.d/Rocky-Sources.repo
Need to update the EPEL repository URL as well
epel-modular.repo epel.repo
comment out metalink property
#metalink=https://mirrors.fed...
set baseurl property
baseurl=[URL]
Can use this or another mirror property
https://dl.fedoraproject.org/pub/archive/epel/