AlmaLinux OS is an open-source, community owned and governed, forever-free enterprise Linux distribution, focused on long-term stability, providing a robust production-grade platform. AlmaLinux OS is binary compatible with RHEL®.
AlmaLinux OS is an open-source, community-driven Linux operating system that fills the gap left by the discontinuation of the CentOS Linux stable release. AlmaLinux OS is an Enterprise Linux distro, binary compatible with RHEL®, and guided and built by the community.
As a standalone, completely free OS, AlmaLinux OS enjoys $1M in annual sponsorship from CloudLinux Inc. and support from more than 25 other sponsors. Ongoing development efforts are governed by the members of the community.
The AlmaLinux OS Foundation is a 501(c)(6) non-profit created for the benefit of the AlmaLinux OS community.
Highlights
AlmaLinux OS Amazon Machine Images include Cloud-init, AWS Systems Manager Agent (SSM Agent) and EC2 Instance Connect support. The default cloud user is set up to be "ec2-user". After the machine is running, you will be able to log in as this user and run privileged commands with sudo.
All AlmaLinux OS images are built with SELinux set to enforcing mode.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
The software itself is free. You pay only by the hour for the arm64 EC2 instance you run it on. Each dimension maps to one Arm-based instance type, so pricing scales with the compute, memory, and storage you choose. Options span general-purpose, compute-optimized, memory-optimized, storage-dense, and graphics families. Sizes range from small shared instances up to bare-metal and 48xlarge configurations. Larger instances carry higher hourly rates. You select the instance type that fits your workload, and billing follows standard EC2 hourly usage with no license fee added.
Top-of-mind questions for buyers
What does one hourly dimension cover for billing?
Each dimension maps to one Arm-based EC2 instance type. You are billed per hour the instance runs. The software carries no license fee, so your hourly charge reflects only the AWS compute, memory, and storage of the instance size you select.
Am I charged when my instance is stopped?
The software itself is free, so no license fee accrues. Hourly billing follows standard EC2 usage, which meters running time. A stopped instance stops accruing compute charges, though attached AWS storage may still incur separate fees.
What drives my cost if the operating system is free?
Your cost comes entirely from the EC2 instance you pick, not the software. Larger instances with more vCPUs, memory, or local storage carry higher hourly rates. Compute-optimized, memory-optimized, storage-dense, graphics, and bare-metal families each price differently based on their hardware.
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An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
AlmaLinux OS 10.2.20261012.0 aarch64 release.
Additional details
Usage instructions
Launch an instance and select a key pair.
Use SSH client software with the private key from your key pair to connect to the instance:
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
AlmaLinux OS Kitten 10 is the direct upstream for AlmaLinux OS 10 and is the primary point for the AlmaLinux community to engage and influence the future of AlmaLinux OS.
AlmaLinux OS is an open-source, community owned and governed, forever-free enterprise Linux distribution, focused on long-term stability, providing a robust production-grade platform. AlmaLinux OS is binary compatible with RHEL®.
AlmaLinux OS is an Open Source and forever-free enterprise Linux distribution, governed and driven by the community, focused on long-term stability and a robust production grade platform. AlmaLinux OS is binary compatible with RHEL®. The AlmaLinux OS Foundation was established as a 501(c)(6) non-profit to steward ownership and governance of the project. The foundation includes over 400 individual members, over 100 Mirror sponsors, and over 25 Corporate sponsors.
AlmaLinux OS is an Open Source and forever-free enterprise Linux distribution, governed and driven by the community, focused on long-term stability and a robust production grade platform. AlmaLinux OS is binary compatible with RHEL®. The AlmaLinux OS Foundation was established as a 501(c)(6) non-profit to steward ownership and governance of the project. The foundation includes over 400 individual members, over 100 Mirror sponsors, and over 25 Corporate sponsors.
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