You'll need to make the EPEL and Space walk channels child channels in both of the CentOS 6 and 6.2 channels. Yes, its a pain. No, a child can only have a single parent. CC <div class="gmail_quote">On Jun 28, 2012 8:53 AM, "Gregory Machin" <<a href="mailto:gdm@linuxpro.co.za">gdm@linuxpro.co.za</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi. I have setup a dedicated channel for the CentOS repositories and another channel for EPEL . Parent Channel Button CentOS 6.0 Base - x86_64 Child Channel CentOS 6.0 CentOSPlus - x86_64 Child Channel CentOS 6.0 Update - x86_64 Parent Channel Button CentOS 6.2 Base - x86_64 Child Channel CentOS 6.2 CentOSPlus - x86_64 Child Channel CentOS 6.2 Update - x86_64 Parent Channel Button EPEL 6 Parent Channel Button Spacewalk Client - x64 Parent Channel Button Spacewalk Server - x64 The problem is the system can only belong to both the Parent Channel and the EPEL Channel at the same time. I don't want to duplicate EPEL channel the data for both the CentOS channels otherwise this I a waist of space etc. How can I achieve this have I missed a configuration some where ? Thanks G _______________________________________________ Spacewalk-list mailing list <a href="mailto:Spacewalk-list@redhat.com">Spacewalk-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/spacewalk-list" target="_blank">https://www.redhat.com/mailman/listinfo/spacewalk-list</a> </blockquote></div>