Appendix A. Troubleshooting DNF modules

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

# dnf module list --enabled

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

dnf module reset ruby

# dnf module reset ruby

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

# dnf module list --enabled

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

dnf module reset postgresql

# dnf module reset postgresql

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