This information applies to AL2. For information about AL2023, see Deterministic upgrades through versioned repositories on AL2023 in the Amazon Linux 2023 User Guide.
By default, AL2 instances launch with the following repositories enabled:
-
amzn2-core -
amzn2extra-docker
While there are many packages available in these repositories that are updated by Amazon Web Services, there might be a package that you want to install that is contained in another repository.
To install a package from a different repository with yum, you
need to add the repository information to the /etc/yum.conf
file or to its own repository.repo/etc/yum.repos.d directory. You can do this
manually, but most yum repositories provide their own
repository.repo
To determine what yum repositories are already installed
List the installed yum repositories with the following command:
[ec2-user ~]$yum repolist all
The resulting output lists the installed repositories and reports the status of each. Enabled repositories display the number of packages they contain.
To add a yum repository to /etc/yum.repos.d
-
Find the location of the
.repofile. This will vary depending on the repository you are adding. In this example, the.repofile is athttps://www..example.com/repository.repo -
Add the repository with the yum-config-manager command.
[ec2-user ~]$sudo yum-config-manager --add-repo https://www.example.com/repository.repoLoaded plugins: priorities, update-motd, upgrade-helper adding repo from: https://www.example.com/repository.repo grabbing file https://www.example.com/repository.repo to /etc/yum.repos.d/repository.reporepository.repo | 4.0 kB 00:00 repo saved to /etc/yum.repos.d/repository.repo
After you install a repository, you must enable it as described in the next procedure.
To enable a yum repository in /etc/yum.repos.d
Use the yum-config-manager command with the --enable
flag. The following
command enables the Extra Packages for Enterprise Linux (EPEL) repository
from the Fedora project. By default, this repository is present in
repository/etc/yum.repos.d on Amazon Linux AMI instances, but it is
not enabled.
[ec2-user ~]$sudo yum-config-manager --enableepel
For more information, and to download the latest version of this package, see
https://fedoraproject.org/wiki/EPEL
