MonumentOS is an immutable OS using RPM-OSTree, using Pantheon to stick closely to the ethos and workflow of elementary.

(In case you might bring up the fact that Sodalite exists, as much as I hate to say it, the repository was archived on the 31st of January, 2025.)

Installation

Warning

This is an experimental feature, try at your own discretion.

To rebase an existing atomic Fedora installation to the latest build:

• First rebase to the unsigned image, to get the proper signing keys and policies installed:

  rpm-ostree rebase ostree-unverified-registry:ghcr.io/distrolabs/monumentos:latest
  

• Reboot to complete the rebase:

  systemctl reboot
  

• Then rebase to the signed image, like so:

  rpm-ostree rebase ostree-image-signed:docker://ghcr.io/distrolabs/monumentos:latest
  

• Reboot again to complete the installation

  systemctl reboot
  

The latest tag will automatically point to the latest build. That build will still always use the Fedora version specified in recipe.yml, so you won't get accidentally updated to the next major version.

Updating

You can perform an update by opening the terminal and running the following:

sudo rpm-ostree upgrade

Similarly, you can roll back in case of breakage by running the following:

sudo rpm-ostree upgrade

For developers of MonumentOS

ISO

If build on Fedora Atomic, you can generate an offline ISO with the instructions available here. These ISOs cannot unfortunately be distributed on GitHub for free due to large sizes, so for public projects something else has to be used for hosting.

Verification

These images are signed with Sigstore's cosign. You can verify the signature by downloading the cosign.pub file from this repo and running the following command:

cosign verify --key cosign.pub ghcr.io/blue-build/template