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MontaVista Linux CGX provides a robust Carrier Grade platform

Develop your next-generation embedded devices with reliability, security, and serviceability of MontaVista® Linux® Carrier Grade eXpress (CGX). As a MontaVista’s core operating system product, CGX delivers Carrier Grade in a comprehensive suite of features tailored for a wide range of interconnected smart applications, offering application portability, dynamic configuration, field maintenance, and real-time performance in a single platform.

Whether you are in 5G networking and communications, aerospace and defense, medical electronics, or IoT markets, MontaVista Linux CGX is designed to meet your specific needs.

As our latest release, CGX 4.0 is MontaVista’s 14th generation Carrier Grade Linux. Development teams will have access to a supported Linux source distribution to create a wide range of embedded devices on x86, ARM and other SoC families. CGX 4.0 is targeted to be Yocto 4.0 compatible with the 5.10 LTS kernel and 11.3 GCC toolchain.

Key Features of MontaVista® Linux® CGX

Real-Time Performance: CGX is designed with real-time performance capabilities. This feature is essential for applications that demand timely and precise responses, making it suitable for critical applications, such as control systems and real-time data processing.

Field Maintenance: CGX ensures hassle-free field maintenance, making it easier to update, configure, and maintain your Linux distribution even after deployment. This is a crucial feature for maintaining the health of your devices over time.

IoT-Ready: In the era of the Internet of Things (IoT), CGX is built to power intelligent interconnected devices. Its features align perfectly with the latest requirements of the IoT market, allowing for seamless integration, enhanced security and performance.

Why Choose MontaVista® Linux® CGX?

Carrier Grade Reliability: By design, CGX adheres to the Carrier Grade Linux (CGL) specification version 5.0, which ensures the highest standards of availability, serviceability, performance, and security. When you choose CGX, you are choosing an operating system that meets the demands of critical applications. Please review the CGL specification here.

Flexible Configuration: CGX provides a highly configurable and flexible package that allows you to tailor your Linux distribution to match your product requirements. Whether you need a real-time Linux environment, application portability, or dynamic configuration, CGX has your back!

Market-Based Customization: With a focus on embedded systems, CGX addresses a diverse range of cases in various industries and market-focused key features, such as networking and communications, aerospace and defense, instrumentation and control, medical electronics, and more.

Leverage MontaVista Linux CGX in your embedded projects TODAY!

With more than 20 years of experience, MontaVista Linux products have been worldwide adopted in millions of devices across industries. Choose MontaVista Linux CGX to experience carrier-grade unique features and build your next-gen embedded applications with a reliable, secure and high quality Linux distribution. MontaVista ensures an unmatched, tailored operating system for your development teams with our CGX product.

MontaVista CGX is structured into Profiles that offer feature sets for specific types of applications or markets. For further information, please read the CGX datasheet here.

Contact us today by sending an email to or a Request!


Faster Time-To-Development - MontaVista Linux CGX offers a complete embedded Linux distribution and tools to get up and running rapidly.

Using the industry standard Yocto, leverage existing work and move to MontaVista Linux CGX with the assurance of feature compatibility and a clear migration path. CGX also offers readily available board support of leading embedded SoCs ensuring you can immediately begin development. 

Supplementing CGX development with world class support and professional services, MontaVista mitigates the schedule risk factors so you can gain competitive edge in releasing product on time.

Increased Flexibility - With unprecedented flexibility in a commercial solution, fetch and integrate code from other team members, internal company teams and outside vendors and more easily customize software, including kernel, device drivers, libraries and applications.

Rapid hardware enablement - MontaVista had been working with embedded processors since day one. 

It is our DNA and we support ARM, x86, MIPS and PowerPC by offering board support packages (BSPs) for leading reference hardware SoCs.  This also includes any necessary toolchain updates to support new processor architectures.

In addition, MontaVista can develop BSPs for custom hardware and continue to perform maintenance on it via our Board Maintenance Program (BMP).  MontaVista’s BMP will add the board to our large board farm that will continually be tested through our rigorous manual and automated testing process.

ARM has risen in popularity and adoption in embedded devices as such MontaVista has put focus and emphasis to support various ARM SoCs, such as ARM v7/v9 and ARM64 (v8).  MontaVista is a core member of the Linaro Networking Group and on the Technical Steering Committee

Market Enabling Profiles - CGX is packaged as a layered configuration of profiles with a base product "CGX Foundation" that provide an out of box Linux development enviornment with a rich set of Board Support Packages (BSPs), Userland packages and tools. CGX Foundation is Carrier Grade Linux (CGL) compliant and includes advanced Secuirty components. In addition, "Virtualization", "Datapath Acceleration" and “Internet of Things (IoT)” to meet the market applicability and customer use case for a general embedded, Carrier network appliance and/or a IoT gateway design.

Be compliant without even trying - Choosing Linux for your next generation network, IoT, or NFV project brings value from truly open source software.  

The community enables continuous development and innovation.  It also requires one to be aware and compliant to GPL, FOSS, and export laws and regulations. 

Adopting MontaVista Linux gives you peace of mind.  We indemnify our distribution and will defend you in legal actions against it.  In addition, we comply with export laws.