Hi, I am trying to add RDO packages to CentOS ISO for my GSoC project but the installer fails at "starting package installation". I would be grateful if someone can identify the error in my method. My steps (I copy contents from CentOS minimal DVD to folder "ISO"): 1. Copy all RPMs (+ dependencies) from CentOS mirror <http://mirror.centos.org/centos/7/cloud/x86_64/openstack-kilo/> into "Packages" folder of minimal CentOS ISO. ​2. Edit "comps.xml"​ from repodata folder on ISO and add my custom group "Cloud" with all the packages (there are 671 packages for Cloud, whose names I get from filelist.xml from cloud's repodata folder). I also add this group to category "minimal install". 3. Create new repo: createrepo -g /root/comps.xml -o <ISO>/ /<ISO>/Packages/ This creates a repodata folder in <ISO>. 4. Create new ISO using geniso. ​I am attaching my comps.xml file. ​ ​Error: The installer gets stuck at package installation and then gives an error: "error populating transaction after 10 retries, failure erlang-sd.rpm from anaconda, no more mirrors to try​" ​PS: I gather RPMs and dependencies following Tom Buskey's guidelines <https://www.redhat.com/archives/rdo-list/2015-June/msg00103.html>.​ -- Cheers, Asadullah Hussain