Enable repo: config-manager is not recognized

at start with only commands dnf ,
i cant enable any repo , config-manager is not recognize

with OM-Control-Center , i add repo without error

$ sudo dnf --refresh install dnf-plugins-core

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it was before topic on different repo
can be a nightmare with rpmi dnf yum and all kind for this

  • if you go with omvl4 with dnf , dnfdragora & dnf have to use Same REPO

i have solved by modifying with this

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So problem solved. Closing topic.