
CentOS Linux 7 is scheduled to reach its end of life (EOL) on June 30, 2024. After this date, no further updates or security patches will be released for CentOS 7. If you’re currently using CentOS 7, it’s crucial to migrate to a new operating system before the EOL date to ensure ongoing security updates, patches, and access to new features
Migrating from CentOS 7 to AlmaLinux 9 involves a two-step process. Let’s break it down:
- Migrate CentOS 7 to AlmaLinux 8:
- Update your CentOS 7 system:
sudo yum update -y && sudo reboot
. - Install the
elevate-release
package:sudo yum install -y http://repo.almalinux.org/elevate/elevate-release-latest-el$(rpm --eval %rhel).noarch.rpm
. - Install Leapp packages:
sudo yum install -y leapp-upgrade leapp-data-almalinux
. - Run a pre-upgrade check:
sudo leapp preupgrade
. - Address any issues based on the generated report.
- Start the upgrade:
sudo leapp upgrade && sudo reboot
.
- Update your CentOS 7 system:
- Prepare for AlmaLinux 9 Migration:
- After migrating to AlmaLinux 8, edit
/etc/yum.conf
and/etc/dnf/dnf.conf
to remove any exclusions related toelevate
orleapp
. - Verify the migration: Check OS versions, logs, and packages.
- After migrating to AlmaLinux 8, edit
Remember to adapt these steps to your environment. For more details, refer to the official AlmaLinux Wiki.