Fedora Core; includes a yum package that has Fedora; repositories in the configuration. To add an extra repository, place a definition file in the /etc/yum.repos.d/ directory on your system. Package providers make the definition files for their repositories available on their Websites.

Adding a file to the definitions directory requires root access. To copy the definition file example.repo, type the command:

su -c 'cp example.repo /etc/yum.repos.d/'

Enter the root password when prompted.

The configuration file for each repository should include the location of the public key that verifies the packages provided by that repository. This public key is automatically imported the first time that you install software from the repository. If the configuration file provided does not include this setting, refer to Section 7.2, “Manually Authorizing Package Sources”.