Canonical is now offering Ubuntu Core 26 images for public cloud testing on AWS, Azure, and Google Cloud.
Built on the 26.04 LTS release, this version is tailored for IoT and specialized edge environments, featuring an immutable base, transactional updates for safe rollbacks, and strict confinement for system agents and applications.
Developers can now access testing images directly through cloud marketplaces.
What is Ubuntu Core?
Ubuntu Core is not intended for general use, like the classic Ubuntu Server. It is designed specifically for smart devices and specialized hardware, with an emphasis on stability and control.
Its key features include:
- Secure updates: System updates are done in a way that allows for automatic rollback to the previous state if something fails during the process.
- Fixed structure: The operating system is immutable, preventing accidental or unplanned changes to its core files.
- Limited access: System applications and services run within strictly predefined frameworks, having access only to the elements necessary for their operation.
Adaptation for the cloud
To make Ubuntu Core work on cloud infrastructures, Canonical has turned the drivers and cloud interface mechanisms into dedicated software packages. This way, the system manages its updates and security autonomously within the platform's digital environment.
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Canonical clarifies that Ubuntu Core does not replace Ubuntu Server. Ubuntu Server remains the appropriate solution for those who need a system that allows for extensive interventions and manual management.
The Ubuntu Core 26 test files are already available in the AWS, Azure, and Google Cloud marketplaces.
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