The problem
Hey ! You have just installed a new Red Hat OS and you would like to start to play with but you are stuck with packages installation:
$ sudo dnf install nginx
Last metadata expiration check: 0:00:10 ago on Thu 23 Jun 2022 08:08:59 AM UTC.
No match for argument: nginx
Error: Unable to find a match: nginx
$ sudo dnf install mariadb
Last metadata expiration check: 0:00:26 ago on Thu 23 Jun 2022 08:08:59 AM UTC.
No match for argument: mariadb
Error: Unable to find a match: mariadb
WTF ?? You cannot install anything ??
Red Hat is not like other Linux distros like Debian, Ubuntu, Rocky or Alma, you have to pay if you want to use it.
Each time you will use the dnf command, your OS will check if you have a valid subscription and allow you to install packages, or not :p
Become a RedHat developer
If you plan to use your Red Hat for development (and only for development), you can join the Red Hat Developer program by creating a free account.
Go to https://developers.redhat.com, and at the very bottom, you will find a red button “Join Red Hat Developer”:
Click on it and create your account.
Configuration
Register
With your developer account, you can now register your OS (use your redhat login):
sudo subscription-manager register --username your-redhat-login
Will output:
Registering to: subscription.rhsm.redhat.com:443/subscription
Password:
The system has been registered with ID: cb695c56-d85e-40cf-afa3-b6f15079fd09
The registered system name is: redhat9
Refresh
Refresh the subscription manager:
sudo subscription-manager refresh
Attach
And finally join with this command:
sudo subscription-manager attach --auto
Will output:
Installed Product Current Status:
Product Name: Red Hat Enterprise Linux for x86_64
Status: Subscribed
Enjoy !
You can now install packages on your RedHat:
sudo dnf install nginx
Will output:
Updating Subscription Management repositories.
Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) 1.6 MB/s | 2.1 MB 00:01
Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs 5.5 MB/s | 7.8 MB 00:01
Dependencies resolved.
========================================================================================
Package Arch Version Repository Size
========================================================================================
Installing:
nginx x86_64 1:1.20.1-10.el9 rhel-9-for-x86_64-appstream-rpms 607 k
Installing dependencies:
nginx-filesystem noarch 1:1.20.1-10.el9 rhel-9-for-x86_64-appstream-rpms 13 k
redhat-logos-httpd noarch 90.4-1.el9 rhel-9-for-x86_64-appstream-rpms 18 k
Transaction Summary
========================================================================================
Install 3 Packages
Total download size: 639 k
Installed size: 1.8 M
Is this ok [y/N]: y
Downloading Packages:
(1/3): nginx-filesystem-1.20.1-10.el9.noarch.rpm 30 kB/s | 13 kB 00:00
(2/3): redhat-logos-httpd-90.4-1.el9.noarch.rpm 41 kB/s | 18 kB 00:00
(3/3): nginx-1.20.1-10.el9.x86_64.rpm 1.0 MB/s | 607 kB 00:00
----------------------------------------------------------------------------------------
Total 1.0 MB/s | 639 kB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : redhat-logos-httpd-90.4-1.el9.noarch 1/3
Running scriptlet: nginx-filesystem-1:1.20.1-10.el9.noarch 2/3
Installing : nginx-filesystem-1:1.20.1-10.el9.noarch 2/3
Installing : nginx-1:1.20.1-10.el9.x86_64 3/3
Running scriptlet: nginx-1:1.20.1-10.el9.x86_64 3/3
Verifying : nginx-filesystem-1:1.20.1-10.el9.noarch 1/3
Verifying : redhat-logos-httpd-90.4-1.el9.noarch 2/3
Verifying : nginx-1:1.20.1-10.el9.x86_64 3/3
Installed products updated.
Installed:
nginx-1:1.20.1-10.el9.x86_64 nginx-filesystem-1:1.20.1-10.el9.noarch
redhat-logos-httpd-90.4-1.el9.noarch
Complete!
Please enjoy !