Ubuntu Core 22 (UC22) is the latest Ubuntu Core release, and is built on the foundations of Ubuntu 22.04 LTS (Jammy Jellyfish). It’s the next generation of Ubuntu for embedded devices, and builds on the advances we’ve made in both Ubuntu Core 20 and Ubuntu Core 18.
New features for this release include:
- Validation sets to permit a set of snap revisions to be installed and updated together
- The ability to migrate devices from Ubuntu Core 20 to Ubuntu Core 22
- A factory reset option to autonomously restore a device to its initial state
- Quota groups to set CPU and memory resource limits per grouped snap services
- MicroK8s support for an easily deployed, streamlined, embedded Kubernetes experience
- Initial MAAS & cloud-init support
Previous updates to Ubuntu Core have added:
- Raspberry Pi support (both ARMv7 and ARM v8)
- Full-disk encryption via TPM integration
Currently x86-only with ARM to follow. TPM integration works with existing CA - New recovery and reinstall modes
- A recovery mode menu and chooser
Latest image downloads
Download the latest UC22 images from:
http://cdimage.ubuntu.com/ubuntu-core/22/stable/current/
UC22 within the wider Ubuntu Core documentation
| Discover Ubuntu Core 22 | |
|---|---|
| Raspberry Pi and Intel NUC | Raspberry Pi and Intel NUC installation guides |
| Upgrade to UC 22 | Migrate from Ubuntu Core 20 to Ubuntu Core 22 |
| MicroK8s on UC | From installation to container deployment on a NUC or Raspberry Pi |
| Manage devices | |
|---|---|
| Quota groups | Recovery from the device, the reboot command, or API |
| Validation sets | Create and edit validations sets |
| Factory reset | Repair, restore or reinstall an impaired device |
| Build a UC22 device | |
|---|---|
| Customising devices | Options for hardware, kernels, and snap package |
| Gadget snaps | Define and configure system properties |
| Building the image | Sign the model assertion and create the image |