Ubuntu Core documentation
Ubuntu Core is a version of the Ubuntu operating system designed and engineered for IoT and embedded systems.
Ubuntu Core updates itself and its applications automatically. Snap packages are used exclusively to create a confined and transaction-based system. Security and robustness are its key features, alongside being easy to install, easy to maintain, and easy to upgrade.
Ubuntu Core is ideal for embedded devices because it manages itself. Whether it’s running on a Raspberry Pi hidden for media streaming, or a Qualcomm DragonBoard handling garage door automation, Ubuntu Core remains transparent, trustworthy and autonomous.
From Linux and maker space tinkerers, to the robotics, automotive and signage industries; from a single device, to a deployment of thousands. Ubuntu Core can handle it.
In this documentation
Tutorials
Get started - a hands-on introduction to Ubuntu Core for new users
How-to guides
Step-by-step guides covering key operations and common tasks
Reference
Technical information - specifications, APIs, architecture
Explanation
Concepts - discussion and clarification of key topics
Project and community
Ubuntu Core is a member of the Ubuntu family. It’s an open source project that warmly welcomes community projects, contributions, suggestions, fixes and constructive feedback.
Thinking about using Ubuntu Core for your next project? Get in touch!
Navigation
Navigation
| Level | Path | Navlink |
|---|---|---|
| 0 | tutorials | Tutorials |
| 1 | getting-started | Quick start |
| 1 | uc20/install | Install Ubuntu Core 20 |
| 2 | uc20/install-raspberry-pi | Raspberry Pi |
| 2 | uc20/install-nuc | Intel NUC |
| 1 | using-ubuntu-core | First steps with Core |
| 1 | custom-images | Create a custom image |
| 0 | how-to | How-to guides |
| 1 | testing-with-qemu | Test on QEMU |
| 1 | image-building | Build an image |
| 1 | gadget-building | Build a gadget snap |
| 1 | kernel-building | Build a kernel snap |
| 1 | use-recovery-mode | Use a recovery mode |
| 1 | system-user | Add a system user |
| 1 | kernel-options | Modify kernel boot options |
| 1 | reference/troubleshooting | Troubleshooting |
| 0 | reference | Reference |
| 1 | system-requirements | System requirements |
| 1 | supported-platforms | Supported platforms |
| 1 | ubuntu-core-configuration | Ubuntu Core configuration |
| 1 | gadget-snaps | Gadget snap format |
| 1 | Snapd REST API | |
| 1 | reference/assertions | assertions: |
| 2 | reference/assertions/account | account |
| 2 | reference/assertions/account-key | account-key |
| 2 | reference/assertions/model | model |
| 2 | reference/assertions/serial | serial |
| 2 | reference/assertions/snap-declaration | snap-declaration |
| 2 | reference/assertions/snap-build | snap-build |
| 2 | reference/assertions/snap-revision | snap-revision |
| 2 | reference/assertions/store | store |
| 2 | reference/assertions/system-user | system-user |
| 2 | reference/assertions/validation | validation |
| 2 | reference/assertions/validation-set | validation-set |
| 0 | explanation | Explanation |
| 1 | uc20/inside | Inside Ubuntu Core 20 |
| 1 | recovery-modes | Recovery modes |
| 1 | snaps-in-ubuntu-core | Snaps in Ubuntu Core |
| 1 | security-and-sandboxing | Security and sandboxing |
| 1 | uc20/full-disk-encryption | Full disk encryption |
| 1 | configuration-and-hooks | Configuration and hooks |
| 1 | /uc20/storage-layout | Storage layout |
| 1 | /uc20/installation-process | Installation process |
| 1 | board-enablement | Board enablement |
| 1 | reference/assertions | Assertion definitions |
| 1 | store-overview | Store overview |
| 1 | refresh-control | Refresh control |
| 1 | networkmanager | Network Manager |
| 1 | bluez | Bluetooth management |
| 1 | reference/docs-guidelines | Documentation guidelines |
| uc20 | Ubuntu Core 20 |
Redirects
Mapping table
| Path | Location |
|---|---|
| /core/docs/bluetooth-management | /core/docs/bluez |
| /core/docs/network-management-services | /core/docs/networkmanager |
| /core/docs/build-store | /core/docs/store-overview |
| /core/docs/validations-and-refresh-control | /core/docs/refresh-control |
| /core/docs/reference/interfaces | https://snapcraft.io/docs/supported-interfaces |
| /core/docs/guides/intro/get-started | /core/docs/getting-started |
| /core/docs/guides/build-device/board-enablement | /core/docs/board-enablement |
| /core/docs/guides/manage-devices/ | /core/docs/system-user |
| /core/docs/stacks/network/network-manager/docs | /core/docs/networkmanager |
| /core/docs/stacks/bluetooth/bluez/docs | /core/docs/bluez |
| /core/docs/guides/go-to-production/simple | /core/docs/production/simple |
| /core/docs/guides/go-to-production/advanced | /core/docs/production/advanced |
| /core/docs/guides/go-to-production/intro | /core/docs/production/intro |
| /core/docs/guides/manage-devices | /core/docs/system-user |
| /core/docs/image/custom-images | /core/docs/custom-images |
| /core/docs/build-store/refresh-control | /core/docs/refresh-control |
| /core/docs/reference/gadget | /core/docs/gadget-snap |
| /core/docs/guides/intro/security | /core/docs/security-and-sandboxing |
| /core/docs/releases/uc20 | /core/docs/uc20/release-notes |
| /core/docs/uc20 | Ubuntu Core 20 |
| /core/docs/uc20/installing | Installing Ubuntu Core 20 on a Raspberry Pi |
| /core/docs/uc20/release-notes | Ubuntu Core 20 release notes |
| /core/docs/network-manager-release-notes | Network Manager release notes |
| /core/docs/networkmanager | Network Manager |
| /core/docs/uc20 | Ubuntu Core 20 |
| /core/docs/ubuntu-core-20 | https://discourse.ubuntu.com/t/ubuntu-core-20/20421 |
| /core/docs/stores-and-developer-accounts | Stores and developer accounts |
| /core/docs/system-user | System user |
| /core/docs/audio-management/access-from-other-snaps | https://discourse.ubuntu.com/t/access-from-other-snaps/19900 |
| /core/docs/audio-management | Audio management |
| /core/docs/network-services | Network management & services |
| /core/docs/production/intro | Introduction to production |
| /core/docs/production/simple | Simple production model - Ubuntu store |
| /core/docs/production/advance | Advanced production model - Brand store |
| /core/docs/reference/assertions/serial | Serial assertion |
| /core/docs/reference/assertions/snap-declaration | Snap-declaration assertion |
| /core/docs/reference/assertions/validation | Validation assertion |
| /core/docs/reference/gadget-snap-forma | https://discourse.ubuntu.com/t/gadget-snap-format/19753 |
| /core/docs/reference/automatic-refreshe | Automatic refreshes |
| /core/docs/reference/core-configuration | Ubuntu Core configuration |
| /core/docs/reference/core-interfaces | Core interfaces reference |
| /core/docs/modem-manager | Install Modem Manager |