Red Hat SummitChapter 10. Managing custom software repositories
You can configure a repository in the /etc/yum.conf file. or in a .repo file in the /etc/yum.repos.d/ directory.
It is recommended to define your repositories in the new or existing .repo file in /etc/yum.repos.d/ because all files with the .repo file extension are read by YUM.
The /etc/yum.conf file contains the [main] sections and can contain one or more repository sections ([<repository_ID>]) that you can use to set repository-specific options. The values you define in individual repository sections of the /etc/yum.conf file override values set in the [main] section.
10.1. YUM repository options
The /etc/yum.conf configuration file contains the repository sections with a repository ID in brackets ([<repository_ID>]). You can use these sections to define individual YUM repositories.
Repository IDs must be unique.
For a complete list of available repository ID options, see the [<repository_ID>] OPTIONS section of the dnf.conf(5) man page on your system.
10.2. Adding a YUM repository
You can add a YUM repository to your system by defining it in the .repo file in the /etc/yum.repos.d/ directory.
Procedure
Add a repository to your system:
yum-config-manager --add-repo <repository_URL>
# yum-config-manager --add-repo <repository_URL>Copy to Clipboard Copied! Toggle word wrap Toggle overflow Note that repositories added by this command are enabled by default.
Review and, optionally, update the repository settings that the previous command has created in the
/etc/yum.repos.d/<repository_URL>.repofile:cat /etc/yum.repos.d/<repository_URL>.repo
# cat /etc/yum.repos.d/<repository_URL>.repoCopy to Clipboard Copied! Toggle word wrap Toggle overflow
Obtaining and installing software packages from unverified or untrusted sources other than Red Hat certificate-based Content Delivery Network (CDN) is a potential security risk, and can lead to security, stability, compatibility, and maintainability issues.
10.3. Enabling a YUM repository
Once you added a YUM repository to your system, enable it to ensure installation and updates.
Procedure
Enable a repository:
yum-config-manager --enable <repository_id>
# yum-config-manager --enable <repository_id>Copy to Clipboard Copied! Toggle word wrap Toggle overflow
10.4. Disabling a YUM repository
To to prevent particular packages from installation or update, you can disable a YUM repository that contains these packages.
Procedure
Disable a repository:
yum-config-manager --disable <repository_id>
# yum-config-manager --disable <repository_id>Copy to Clipboard Copied! Toggle word wrap Toggle overflow
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