CentOS 7 – Dependency Resolution – Error – Requires: dkms – missing epel repository

Quick note for those not familiar with the CentOS 7 peculiarity and especially the repository peculiarity.
Receiving the follwoing error:

--> Finished Dependency Resolution
Error: Package: 3:kmod-nvidia-latest-dkms-418.87.00-2.el7.x86_64 (cuda)
           Requires: dkms
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

It means you need a package (or meta-package, which might pull multiple packages and dependencies offering a big framework, for example), which could not be found in the existing repositories. In this very case, we need the DKMS (Dynamic Kernel Module Support) – https://en.wikipedia.org/wiki/Dynamic_Kernel_Module_Support

The DKMS is offered in epel repository and it could not be found in the CentOS 7 official repositories. Just add the epel repository.

[root@localhost ~]# yum install -y epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.daticum.com
 * extras: mirrors.daticum.com
 * updates: mirrors.daticum.com
Resolving Dependencies
--> Running transaction check
---> Package epel-release.noarch 0:7-11 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

 Package                                       Arch                                    Version                                Repository                               Size
 epel-release                                  noarch                                  7-11                                   extras                                   15 k

Transaction Summary
Install  1 Package

Total download size: 15 k
Installed size: 24 k
Downloading packages:
epel-release-7-11.noarch.rpm                                                                                                                         |  15 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : epel-release-7-11.noarch                                                                                                                                 1/1 
  Verifying  : epel-release-7-11.noarch                                                                                                                                 1/1 

  epel-release.noarch 0:7-11                                                                                                                                                


And rerun your first install yum line. Now you won’t receive the DKMS error.

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