Thank you. I could resolve the issues, by editing stuff in /etc/yum/pluginconf.d There, I created a file rhnplugin.conf with the content [rhel-6-server-extras-rpms] enabled=0 [rhel-6-server-optional-rpms] enabled=0 and I edited the file search-disabled-repos.conf and inserted into the line ignored-repos= ... the pattern rhel* I do not know whether this second step was necessary, I happened to do both at once. After that, yum upgrade no longer demanded rhel repositories. On 30.07.17 14:37, Johnny Hughes wrote: > On 07/30/2017 07:32 AM, Alois Treindl wrote: >> I am trying to migratean existing RHEL 6 machine to Centos 6. >> >> I followed the instructions in >> https://wiki.centos.org/HowTos/MigrationGuide >> >> I run into problems: >> >> when I run >> >> yum upgrade >> >> then yum tries to access a repository rhel-6-server-extras-rpms >> >> and then fails. >> >> What can I do that yum no longer tries to access this repository? >> > Normally, .repo files are in /etc/yum.repos.d/ . > > You should be able to edit files in that directory and find a section > for any repos that you wish to disable. Setting enable=0 in the > applicable section will turn off that specific repo. > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos