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====== Enable Repos Alma Linux Yum (yum-config-manager) ======
<color #db5f0b>Oct 2023</color>
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Using our AlmaLinux installer means that many repositories are not enabled, this is a short guide on how to resolve this.
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From the command line, use the following command:
    yum repolist --all
You should see a list similar to the following, albeit with different repositories.

<file>
repo id                         repo name                                         status
alma-updates-8.7-2023.04.26     alma-updates-8.7-2023.04.26                       enabled
appstream                       AlmaLinux 8 - AppStream                           disabled
appstream-debuginfo             AlmaLinux 8 - AppStream debuginfo                 disabled
appstream-source                AlmaLinux 8 - AppStream Source                    disabled
baseos                          AlmaLinux 8 - BaseOS                              disabled
baseos-debuginfo                AlmaLinux 8 - BaseOS debuginfo                    disabled
baseos-source                   AlmaLinux 8 - BaseOS Source                       disabled
extras                          AlmaLinux 8 - Extras                              disabled
extras-debuginfo                AlmaLinux 8 - Extras debuginfo                    disabled
extras-source                   AlmaLinux 8 - Extras Source                       disabled
ha                              AlmaLinux 8 - HighAvailability                    disabled
ha-debuginfo                    AlmaLinux 8 - HighAvailability debuginfo          disabled
ha-source                       AlmaLinux 8 - HighAvailability Source             disabled
install-utils_repo              install-utils_repo repo                           disabled
k3s-pre-reqs_repo               k3s-pre-reqs_repo repo                            disabled
mkel_repo                       mkel_repo repo                                    enabled
nfv                             AlmaLinux 8 - Real Time for NFV                   disabled
nfv-debuginfo                   AlmaLinux 8 - Real Time for NFV Debuginfo         disabled
nfv-source                      AmaLinux 8 - Real Time for NFV Sources            disabled
plus                            AlmaLinux 8 - Plus                                disabled
plus-debuginfo                  AlmaLinux 8 - Plus debuginfo                      disabled
plus-source                     AlmaLinux 8 - Plus Source                         disabled
powertools                      AlmaLinux 8 - PowerTools                          disabled
powertools-debuginfo            AlmaLinux 8 - PowerTools debuginfo                disabled
powertools-source               AlmaLinux 8 - PowerTools Source                   disabled
reboot-daemon_repo              reboot-daemon_repo repo                           disabled
resilientstorage                AlmaLinux 8 - ResilientStorage                    disabled
resilientstorage-debuginfo      AlmaLinux 8 - ResilientStorage debuginfo          disabled
resilientstorage-source         AlmaLinux 8 - ResilientStorage Source             disabled
rt                              AlmaLinux 8 - Real Time                           disabled
rt-debuginfo                    AlmaLinux 8 - Real Time Debuginfo                 disabled
</file>
if you get an error (command not found), due to the software not being available, you can install it by using:
    yum install yum-utils
This should install as shown below:
<file>
Last metadata expiration check: 1:01:22 ago on Tue 10 Oct 2023 06:26:57 PM UTC.
Dependencies resolved.
=======================================================================================================================================================================================================
 Package                                   Architecture                           Version                                            Repository                                                   Size
=======================================================================================================================================================================================================
Installing:
 yum-utils                                 noarch                                 4.0.21-14.1.el8                                    alma-updates-8.7-2023.04.26                                  73 k

Transaction Summary
=======================================================================================================================================================================================================
Install  1 Package

Total size: 73 k
Installed size: 23 k
Is this ok [y/N]: y
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                               1/1
  Installing       : yum-utils-4.0.21-14.1.el8.noarch                                                                                                                                              1/1
  Running scriptlet: yum-utils-4.0.21-14.1.el8.noarch                                                                                                                                              1/1
  Verifying        : yum-utils-4.0.21-14.1.el8.noarch                                                                                                                                              1/1

Installed:
  yum-utils-4.0.21-14.1.el8.noarch

Complete!
</file>
Now the repositories can be enabled using the package manger yum, first test that yum-config-manager is working:
    yum-config-manager --version
You should get a valid response similar to the following:
<file>
4.7.0
  Installed: dnf-0:4.7.0-11.el8.alma.noarch at Tue 08 Aug 2023 12:43:43 PM GMT
  Built    : AlmaLinux Packaging Team <packager@almalinux.org> at Wed 12 Oct 2022 09:46:34 AM GMT

  Installed: rpm-0:4.14.3-24.el8_7.x86_64 at Tue 08 Aug 2023 12:42:46 PM GMT
  Built    : AlmaLinux Packaging Team <packager@almalinux.org> at Wed 09 Nov 2022 03:50:55 PM GMT
</file>
Now repositories can be enabled, for our servers the following should be enabled:
    yum-config-manager --enable appstream baseos extras
This will enable the following repositories:
<file>
repo id                         repo name                                         status
appstream                       AlmaLinux 8 - AppStream                           enabled
baseos                          AlmaLinux 8 - BaseOS                              enabled
extras                          AlmaLinux 8 - Extras                              enabled
</file>
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Now you can install software and other repos as required.
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