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Stemcell OS: Ubuntu

The base Ubuntu operating system is built from the cloudfoundry/bosh-linux-stemcell-builder repository.

The most recent versions of these distributions are built every few weeks to ensure the latest upstream patches are included. Critical and High CVEs result in new stemcells, regardless of the regular interval. These builds are published on bosh.io/stemcells as new, minor versions.

Distributions

Ubuntu Noble (24.04)

You can find the official stemcells from bosh.io/stemcells. Noble Numbat is an Ubuntu LTS Release, released April 2024 with patches being supported until April 2029.

Ubuntu Jammy (22.04)

You can find the official stemcells from bosh.io/stemcells. Jammy Jellyfish is an Ubuntu LTS Release, released April 2022 with patches being supported until April 2027.

Ubuntu Bionic (18.04)

Warning

Stemcells based on Ubuntu Bionic (18.04) are no longer receiving security updates from Open Source Cloud Foundry due to the End of Standard Support. We strongly recommend switching to Ubuntu Jammy (22.04) based stemcells.

You can find the official stemcells from bosh.io/stemcells. Bionic is an Ubuntu LTS Release, with patches being supported by Ubuntu until April 2023.

Kernel Livepatch Support

Ubuntu's Kernel Livepatch functionality is not supported in these distributions.

One of the priorities of BOSH is to ensure that software can be deployed in a highly reproducible, intentional manner. To ensure consistency across IaaSes (on-premise, public, private, internet-less) and across VMs within a cluster or deployment, we do not enable Livepatch. Typically, deployments and their releases are configured to support updates (such as stemcells) to be continuously deployed in a stable, reliable way without the need forLivepatch.