This product has charges associated with it for seller support. It is an optimized and security-enhanced operating system based on CentOS Stream 9, backed by extended technical support from our professional team, designed to deliver a smooth, stable, and secure production environment for users.
This is a repackaged open source software product wherein additional charges apply for extended support.
This product is an AWS AMI (Amazon Machine Image) built upon CentOS Stream 9, designed to provide an out-of-the-box, stable, secure, and cloud-optimized operating system solution. Through systematic configuration adjustments and feature enhancements, we ensure that instances are in an optimal state upon launch, backed by professional technical support services.
System and Partition Configuration
The system supports both Standard Partitioning and LVM (Logical Volume Management) layouts. The root filesystem is available in either ext4 or XFS formats, depending on the specific version. Each image has been rigorously optimized for performance and stability based on its respective filesystem and partition structure.
Note: Please refer to the AMI product title for the specific combination of partition layout and filesystem type included in this version.
Security and Integration
For enhanced ease of use and manageability, the operating system firewall is disabled by default, allowing users to configure rules as needed. The system is pre-integrated with the AWS Systems Manager Agent (SSM Agent), enabling secure, credential-free instance management, real-time monitoring, and automated operations directly via the AWS Console.
Automatic Performance Tuning
Upon startup, the system automatically applies a suite of lightweight yet robust kernel parameter optimizations tailored to the detected instance type and size. These adjustments span the compute, storage, and network layers, ensuring that hardware resources are utilized at peak efficiency. All modifications are strictly validated for compatibility and stability to ensure high performance without the risks of over-tuning.
Technical Support and Service Scope
We provide multiple technical support channels, including email, community forums, and a knowledge base. Our support primarily addresses configuration, functionality, and compatibility issues encountered while using the operating system. If an upstream software bug is identified, we will assist users in developing mitigation measures or alternative solutions and help escalate the issue to the open-source community, with final fixes following the official update process.
Product Lifecycle Commitment
We are committed to updating this product at least quarterly. Critical security vulnerabilities will be addressed with real-time updates. The last three major versions of the product will be maintained and made available to users.
Quick Selection Guide
Feature
Non-LVM Ext4
Non-LVM XFS
LVM Ext4
LVM XFS
Performance
Good
Excellent
Good
Excellent
Flexibility
Low
Low
High
High
Shrinkable
Yes
No
Yes
No
Recommendation
Boot / Simple Web
Data / Analytics
General Purpose
Enterprise / DB
These four options represent different trade-offs between management flexibility (LVM vs. Standard) and filesystem features (Ext4 vs. XFS).
The distinction lies in the trade-off between management flexibility and filesystem features. LVM offers the agility to resize logical volumes and span multiple disks, making it ideal for dynamic production environments, whereas Non-LVM provides a simpler, lower-overhead structure perfect for small instances or straightforward architectures. Regarding filesystems, XFS is the modern enterprise standard (like RHEL/CentOS) known for superior performance (note: it allows growth only, not shrinking), while Ext4 is the reliable classic and remains the only option if you ever need to shrink your storage.
If you are unsure, or need to align with RHEL/CentOS industry standards, choose LVM + XFS.
If you prioritize simplicity, or are running on small instances like t3.nano/micro, choose Non-LVM + Ext4.
Pre-optimized & Auto-tuned: Automatically applies kernel optimizations based on AWS instance types for out-of-the-box performance.
Security-hardened & Seamlessly Integrated: Features security-hardened configurations and comes pre-installed with AWS SSM Agent for secure and effortless server management.
Professional Support & Ongoing Maintenance: Backed by extended professional support and a commitment to at least quarterly updates, ensuring long-term stability and security.
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.
Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time. Alternatively, you can pay upfront for a contract, which typically covers your anticipated usage for the contract duration. Any usage beyond contract will incur additional usage-based costs.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
If you are an AWS Free Tier customer with a free plan, you are eligible to subscribe to this offer. You can use free credits to cover the cost of eligible AWS infrastructure. See AWS Free Tier for more details. If you created an AWS account before July 15th, 2025, and qualify for the Legacy AWS Free Tier, Amazon EC2 charges for Micro instances are free for up to 750 hours per month. See Legacy AWS Free Tier for more details.
You pay by the hour for this CentOS 9 Minimal image, with no upfront commitment. Each dimension maps to a specific EC2 instance type, so the software rate follows the instance size you launch. Options span small burstable types up to high-memory, compute, storage, and GPU or accelerator instances, including bare-metal sizes. Larger instances carry higher hourly rates, so cost scales with the compute, memory, or acceleration you select. You pick one instance type, run it, and pay only for the hours it runs. AWS infrastructure charges are billed separately from this software rate.
Top-of-mind questions for buyers
What do I get for the hourly rate on each instance type dimension?
You get the CentOS 9 Minimal image, a performance-tuned Linux build with kernel tuning and a minimized attack surface. The rate covers the software licence for the matching EC2 instance type. The vendor also provides quarterly updates and maintenance for the last three major versions.
Am I charged the software rate when my instance is stopped?
The software rate meters running instance-hours. A stopped instance does not accrue this hourly software charge. Underlying AWS storage fees for the attached volume may still apply while the instance is stopped, but those are billed separately by AWS.
How does my bill change if I move to a larger instance type?
You pick one instance type at a time and pay its hourly software rate for the hours it runs. Switching to a larger type applies that type's rate going forward. There is no automatic tier upgrade; you choose the instance size when you launch.
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Vendor refund policy
This product follows the standard cloud marketplace billing model. You may stop incurring charges at any time by terminating the instance. Refunds for any pre-paid or unused portions are subject to the cloud platform's billing policies.
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Vendor terms and conditions
Upon subscribing to this product, you must acknowledge and agree to the terms and conditions outlined in the vendor's End User License Agreement (EULA).
Content disclaimer
Vendors are responsible for their product descriptions and other product content. AWS does not warrant that vendors' product descriptions or other product content are accurate, complete, reliable, current, or error-free.
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
Updated all packages to the latest version.
For more information, please visit our support community.
Additional details
Usage instructions
Note: For all Avora Linux AMI products, the default login username is ec2-user.
Connect via SSH:
Launch the Instance: Launch an instance from this AMI using the EC2 Console or AWS CLI. Ensure you select a Key Pair during the launch process.
Security Group: Make sure the Security Group attached to the instance allows inbound traffic on TCP port 22 (SSH) from your IP address.
Connect: Open your terminal or SSH client and connect using the default username and your private key file.
When you purchase this product, you gain access to our Extended Support service. This includes:
Configuration & Usage Support: We provide assistance for issues related to the deployment, configuration, and operation of this optimized operating system within AWS.
Troubleshooting: Our team helps diagnose and resolve problems stemming from our pre-applied optimizations, system integration (e.g., AWS SSM Agent), or documented features.
Best Practices Guidance: We offer advice on maintaining and leveraging the optimized environment for stability and performance.
Bug Escalation: If a critical issue is identified as a potential bug in the upstream OS distribution, we will assist in finding workarounds and formally escalate the issue to the relevant open-source community channels.
Support Scope Clarification: Our support covers the product as delivered-the repackaged and optimized CentOS Stream 9 AMI. It does not include:
Development or debugging of customer applications.
In-depth customization of kernel parameters beyond our provided optimization scope.
Direct fixes for bugs originating from upstream open-source projects; these are resolved through official community updates which we integrate into our quarterly releases.
AWS infrastructure support
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.
This product has charges associated with it for seller support. It is an optimized and security-enhanced operating system based on CentOS Stream 9, backed by extended technical support from our professional team, designed to deliver a smooth, stable, and secure production environment for users.
This product has charges associated with it for seller support. It is an optimized and security-enhanced operating system based on CentOS Stream 9, backed by extended technical support from our professional team, designed to deliver a smooth, stable, and secure production environment for users.
This product has charges associated with it for seller support. It is an optimized and security-enhanced operating system based on CentOS Stream 9, backed by extended technical support from our professional team, designed to deliver a smooth, stable, and secure production environment for users.
This product has charges associated with it for seller support. It is an optimized and security-enhanced operating system based on CentOS Stream 10, backed by extended technical support from our professional team, designed to deliver a smooth, stable, and secure production environment for users.
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