Last updated on August 9, 2020 by Dan Nanni
While CentOS/RHEL platforms maintain several official repositories (e.g., base
, updates
, contrib
), they are lacking in terms of software coverage and release cycles. To bridge the gap between what is available and what is commonly needed, third-party repositories are created to serve community needs for commonly requested software packages.
One such third-party software repository for CentOS/RHEL is ELRepo (The Community Enterprise Linux Repository). ELRepo is actually one of few "community-approved" repositories due to its high maintenance quality.
ELRepo is especially well-known as a repository of hardware/device drivers and mainline kernel images for CentOS/RHEL. The repository carries a large number of the latest drivers for filesystems, graphics cards, network cards, sound cards, webcams, and displays. If you want to enhance your experience with various hardware devices in CentOS/RHEL-based enterprise Linux environment, it is recommended to enable ELRepo repository. ELRepo consists of the following four channels that you can enable separately.
elrepo
Offers packages not contained in CentOS/RHEL distributions. Enabled by default.
elrepo-kernel
Offers the LTS kernels and the latest stable kernels. Disabled by default.
elrepo-extras
Offers packages that replace or update CentOS/RHEL distributions. Disabled by default.
elrepo-testing
: Offers packages that will soon move to elrepo
. Disabled by default.
To set up ELRepo repository, you need to import its official GPG key and then install ELRepo RPM as follows.
$ sudo rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org $ sudo rpm -Uvh https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm
$ sudo rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org $ sudo rpm -Uvh https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm
To verify ELRepo has been installed and enabled successfully, run the following:
$ yum repolist enabled
The output should indicate that elrepo
(ELRepo's main channel) is enabled by default.
To see all available packages in the elrepo
channel:
$ yum --disablerepo="*" --enablerepo="elrepo" list available
Similarly, to find a list of all available packages in the elrepo-kernel
channel:
$ yum --disablerepo="*" --enablerepo="elrepo-kernel" list available
To install a package from ELRepo's main channel (which is enabled by default), simply use yum
command as usual:
$ sudo yum install nvidia-x11-drv
Depending on packages, you may need to disable other non-elrepo repositories.
$ sudo yum --disablerepo="*" --enablerepo="elrepo" install nvidia-x11-drv
If you want to install a package from any other channel in ELRepo, you must explicitly enable it:
$ sudo yum --enablerepo="elrepo-kernel" install kernel-ml
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