Appendix B. Troubleshooting DNF Modules


If DNF modules fails to enable, it can mean an incorrect module is enabled. In that case, you have to resolve dependencies manually as follows. List the enabled modules:

# dnf module list --enabled

B.1. Ruby

If Ruby module fails to enable, it can mean an incorrect module is enabled. In that case, you have to resolve dependencies manually as follows:

List the enabled modules:

# dnf module list --enabled

If the Ruby 2.5 module has already been enabled, perform a module reset:

# dnf module reset ruby

B.2. PostgreSQL

If PostgreSQL module fails to enable, it can mean an incorrect module is enabled. In that case, you have to resolve dependencies manually as follows:

List the enabled modules:

# dnf module list --enabled

If the PostgreSQL 10 module has already been enabled, perform a module reset:

# dnf module reset postgresql

If a database was previously created using PostgreSQL 10, perform an upgrade:

  1. Enable the DNF modules:

    # dnf module enable satellite:el8
  2. Install the PostgreSQL upgrade package:

    # dnf install postgresql-upgrade
  3. Perform the upgrade:

    # postgresql-setup --upgrade
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