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Bug 1099016 - GPG key retrieval failed on client when Installing a package from custom repo. Successful.so it means key is correct. Also, redhat.repo is. May 24, 2019 In this article, we have shown how to create a local YUM/DNF repository in RHEL 8, using the installation DVD or ISO file. Do not forget to reach us via the feedback form below for any questions or comments.

It is always recommended you use a known repository, such as Extra Packages for Enterprise Linux (EPEL), which is hosted at fedoraproject.org.Or, you might need a specific version of MySQL, which is hosted at mysql.com.There are also circumstances where you might need to add a lesser-known repository, such as remirepo.net for versions of PHP, or even host your own repository. Nov 06, 2019  In this article, I will explain how to set up a local Apache-based YUM/DNF repository on Red Hat Enterprise Linux (RHEL) 8, using the installation DVD or ISO file. I will also show you how to find and install software packages on client RHEL 8 machines using the Apache webserver. Create a local/FTP yum repository from the OS installer disk(s). This guide is for RHEL6.3 but it should work fairly well with CentOS 6.4 and Fedora. Nov 20, 2019  In this article, I will explain how to set up a local web-based YUM/DNF repository on Red Hat Enterprise Linux (RHEL) 8, using the installation DVD or ISO file. I will also show you how to find and install software packages on client RHEL 8 machines using. If you have a key already generated, you can tell git to use that specific key without worrying about matching between your git user ID (name+email) and the GPG key's ID. You should have your git user.email match one of the emails on your GPG key for your signed tags or commits to be useful to other users, though.

Software repositories are usually used over the internet and can be accessed by multiple users worldwide. However, you can create your own local repository on your local server and use it as a single user, or allow access to other machines on your LAN using a web server or FTP.

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The advantage of creating a local repository is that you don’t require an internet connection to install software packages or updates. Another benefit is, of course, the download speed. Since the packages are downloaded via a local network, the updates perform quickly.

Yellowdog Updater, Modified (YUM) or Dandified YUM (DNF) are software package managers that manage RPM-based Linux distributions. With YUM or DNF, you can install and update groups of computers without having to manually update each RPM.

In this article, I will explain how to set up a local web-based YUM/DNF repository on Red Hat Enterprise Linux (RHEL) 8, using the installation DVD or ISO file. I will also show you how to find and install software packages on client RHEL 8 machines using the Nginx HTTP server and the Apache web servers. For Apache instructions, see Create your own Apache-based YUM/DNF repository on Red Hat Enterprise Linux 8 and for FTP instructions, see Create your own FTP-based YUM/DNF repository on Red Hat Enterprise Linux 8.

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Prerequisites

You will need to set up two Red Hat Enterprise Linux 8 systems: one local repo server and one client machine that will use the local repository from the local server. The result will look something like this:

• Local Repository Server: RHEL 8 [10.0.0.10]

• Local Client Machine: RHEL 8 [10.0.0.11]

• RHEL 8 installation DVD

• Nginx HTTP server

Create your repository

Creating your repository involves a number of steps. I'll walk you through them.

Step 1: Mount the Red Hat Enterprise Linux 8 media

First, mount the local media (the DVD, USB stick, etc.) that contains Red Hat Enterprise Linux 8. Use the installation DVD:

Or mount the ISO image:

Step 2: Create a local YUM repository from the mounted media

Move the existing repo files located in /etc/yum.repos.d:

From this point, it is better if you continue as the root user. Switch to superuser with su command.

Next, create a directory for the repo:

Use this directory with Nginx or Apache for serving files over the LAN.

Create the new local repository’s configuration file, local-dvdrom.repo, under the /etc/yum.repos.d directory:

Step 3: Copy media content to the local directory

Copy the ISO files locally under the /local_repo directory:

Wait until the files are copied, then verify the files were copied using:

Step 4: Configure the local YUM/DNF repository

Edit the repo configuration file you created earlier:

Paste this configuration into it:

Install the required packages for creating, configuring and managing the local repository:

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Finally, run the createrepo command:

Step 5: Test and verify your local repository

In this step, you clean up the temporary repository files and verify that the local repository is enabled:

Verify that the local repository was created:

You can see that the local repository generated files, so everything is ok at this point.

If you read the above command output carefully, you get the warning message, This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. If you want to suppress or prevent this message while running the dnf or yum command then edit the file /etc/yum/pluginconf.d/subscription-manager.conf:

and change the parameter enabled=1 to enabled=0:

Set up your Nginx HTTP server

As I mentioned before, this article covers setting up your own repository using the Nginx HTTP server. I'll walk you through installing and configuring Nginx to serve your repo.

Install Nginx

To install the Nginx HTTP server using YUM:

Configure Nginx to auto-start at boot

Once Nginx is installed, start and enable the service to auto-start at boot and verify its status using the following commands:

Configure the firewall

Next, you must configure the firewall so that Nginx can be reached:

Verify that Nginx is up and running

You can now verify that your Nginx server is up and running by going to the localhost URL on your web browser. The default Nginx web page http://localhost/ should be displayed.

Configure Nginx

To configure Nginx, open the configuration file:

Now, find the server section of the file and change it so that it looks like this:

Test and clean up

Now, start the Nginx service again and test its status:

Everything is good.

Change permissions and set SELinux

Continue the security configuration by changing the permissions on the local_repo directory and configuring SELinux. To change the permissions:

Then, check if SELinux is enforcing:

If it is Enforcing, type:

If SELinux is not set to Enforcing, then the files will not serve from the repo.

And make the change permanent by editing the /etc/sysconfig/selinux file and set the following value:

SELINUX=enforcing

Set up the client

Now, to configure the Red Hat Enterprise Linux 8 client machine’s repository.

Add the repo

On the client machine, add the local repos from the server to the client’s YUM configuration:

Then paste the following configuration (be sure to change the server IP address according to your setup):

Test the repo

Test the LocalServerRepo by installing a package. For example:

That is great! Everything works as expected. You now have an Nginx-based local YUM/DNF repository in Red Hat Enterprise Linux 8, using the installation DVD or ISO file.

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Related Content

In most scenarios, when you build out a new system, you want to keep the installation footprint as small as possible. As a result, not all repositories and packages are typically installed at that time. Fortunately, repositories can be enabled and disabled through yum at any time, and there are many different sources you can choose from.

In this example, we'll look specifically at Fedora, but the process is similar across other distributions utilizing yum.

More Linux resources

It is always recommended you use a known repository, such as Extra Packages for Enterprise Linux (EPEL), which is hosted at fedoraproject.org. Or, you might need a specific version of MySQL, which is hosted at mysql.com. There are also circumstances where you might need to add a lesser-known repository, such as remirepo.net for versions of PHP, or even host your own repository.

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Once you determine which repository you need, there are several different ways to install and enable it.

Install a repository .rpm

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The first is to install an .rpm with the repository information. The following command installs the EPEL repository for CentOS 8:

Set up only a section of a repository

In the case of needing a specific repository, as in the case of PHP 7.2, you first need to install the repo and then disable and enable repositories using yum-config-manager as follows:

Manually set up a repository

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The last method of configuring a yum repository manually, where we create a .repo file within /etc/yum.repo.d using a text editor. In this example, we will create the repository file for MySQL 5.7:

Now, let’s discuss the lines we configured. The first three lines contain the minimum information you need when creating a .repo file. The first line is the unique identifier for the section and is enclosed in []:

Note: You can have more than section (repository) in a .repo file.

The second line in our file is the name we choose to describe the repository:

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The third line is the location (baseurl) of the repository. In this case, we are using HTTP to access it:

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As we mentioned, the first three lines are mandatory to configure a repository. We have also configured three more options. In the first additional option, we configured the toggle enabled, where 0 is disabled and 1 is enabled:

In the last two lines, we configured our information related to GPG. The first of these lines is the toggle to check for GPG and the second is the location of the key you are checking against:

To see a complete list of repository options, see the man page as follows:

Now that you have your new repository configured using one of these methods, you should verify that it is configured properly using the yum-config-manager command from earlier to enable and disable PHP sections:

This command returns the complete information for the repository:

With your repository installed, you are ready to use yum to install the packages located there!

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