Unable to fetch repositories through Red Hat CDN, though the system is successfully registered.

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux (RHEL)
  • Red Hat Subscription Management (RHSM)
  • Red Hat Content Delivery Network (CDN)

Issue

  • Not able to fetch repos from Red Hat Network, though the system is successfully registered using subscription-manager.
  • Yum command shows No Packages marked for Update.
  • The systems migrated from AWS/Azure to on-premise fails to access repositories from Red Hat CDN.

Resolution

  • Enable the manage_repos parameter in /etc/rhsm/rhsm.conf :

    # Manage generation of yum repositories for subscribed content:
    manage_repos = 0               <<<<< Change this to 1

Root Cause

  • The parameter manage_repos was disabled in /etc/rhsm/rhsm.conf which does not allow yum to access the RHEL repositories from CDN via subscription-manager plugin.

Diagnostic Steps

  • The command yum update returns the message No Packages marked for Update even though the system is properly registered.

    # yum repolist
Loaded plugins: product-id, search-disabled-repos, security, subscription-
              : manager
repolist: 0

# yum update
Loaded plugins: product-id, search-disabled-repos, security, subscription-
              : manager
Setting up Update Process
No Packages marked for Update

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