openSUSE MicroOS

Micro Service OS providing Transactional (Atomic) Updates upon a read-only btrfs root filesystem

Designed to host container workloads with automated administration & patching. Installing openSUSE MicroOS you get a quick, small environment for deploying Containers, or any other workload that benefits from Transactional Updates. As rolling release distribution the software is always up-to-date.

MicroOS offers an offline image. The main difference between the offline and self-install/raw images are that the offline image has an installer. Raw and self-install allows for customization via combustion or manually in the image after it is written to the disk. There is an option for a real-time kernel.

Try MicroOS in VMs running on either Xen or KVM. Using a Raspberry Pi or other System on Chip hardware may use the preconfigured image together with the Combustion functionality for the boot process. Both preconfigured and self-installed images are intended to be used with Combustion written to a USB, which is driven to allow configuration on any first boot, with the option for default password protected changes.



Is predictable

  • Is not altered during runtime
  • Will run the same artifacts consistently on every boot

Is scalable

  • Eliminates efforts in configuring individual instances during runtime
  • Can be rolled out easily repeatedly with predictable outcome

Is reliable

  • Automated recovery from faulty updates

Atomic Updates

Transactional Updates


By using btrfs with snapshots MicroOS uses a very space efficient way to store the file system’s history. All the configuration files in /etc are part of the snapshot and the rollback.


  • No new package format is needed, use standard openSUSE RPMs
  • No size limitation, neither for partitions nor the operating system
  • Easy to enhance


MicroOS is an Immutable OS, rollback is simple

  • Immutable: No changes on disk
  • Rollback by rebooting to an old BTRFS snapshot

Secure Updates

  • Get your updates via HTTPS
  • Packages and repositories are signed by our build system
  • Packages are verified
  • No updates are done in case of dependency conflicts
  • No waste of space: Filesystem snapshots get deleted in case of unsuccessful updates


Applications are installed in containers rather than the root filesystem:

  • Isolated from the core filesystem
  • Reduced ability for malicious applications to compromise the system
  • New installation without reboot
  • Update in atomic way possible (create new, kill old)
  • Easy rollback


Debugging Toolbox Container

  • Launches privileged container
  • Root filesystem available below /media/root
  • zypper to install the necessary tools, available without reboot
  • Persistent between usages
Intel or AMD 64-bit desktops, laptops, and servers (x86_64)
Self Installing Container Host (1.3 GiB)
UEFI Arm 64-bit servers, desktops, laptops and boards (aarch64)
PowerPC servers, little-endian (ppc64le)
We also have Máquina Virtual, Nube, Hardware images. Check out Alternative Downloads!


  • Memoria: 1GB RAM física + memoria adicional para a súa carga de traballo
  • Almacenamento:
    • Partición / (root): 5GB de espazo dispoñible en disco
    • Partición /var: 5GB de espazo dispoñible en disco


  • Memoria: 2GB RAM física + memoria adicional para a súa carga de traballo
  • Almacenamento:
    • Partición / (root): 20GB de espazo dispoñible en disco
    • Partición /var: 40GB de espazo dispoñible en disco

Comprobe a súa descarga antes de usar

Moitas aplicacións poden verificar a suma de comprobación dunha descarga. Para verificar a túa descarga pode ser importante xa que verifica que realmente obtiveches o ficheiro ISO que querías descargar e non unha versión corrupta.

Para cada ISO, ofrecemos un ficheiro de suma de comprobación coa súa correspondente suma SHA256.

Para máis seguridade, podes usar GPG para verificar quen firmou estes ficheiros .sha256.

Debera AD48 5664 E901 B867 051A B15F 35A2 F86E 29B7 00A4

Para ter máis axuda de como verificar a túa descarga, por favor le Axuda sobre as sumas de comprobación