Universal Blue

Topics: Fedora Silverblue

Rebasing a Fedora Atomic Bluefin system to a signed Universal Blue image requires enrolling its Secure Boot key before switching from the unverified image.

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Rebasing on signed Universal Blue images

First, install an unsigned image:

rpm-ostree rebase ostree-unverified-registry:ghcr.io/ublue-os/bluefin:39

Enroll the secure boot key:

ujust enroll-secure-boot-key

Reboot and install the MOK key.

Now you should be able to rebase to the signed image using

rpm-ostree rebase ostree-image-signed:docker://ghcr.io/ublue-os/bluefin:39

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