# Universal Blue Topics: [[Fedora Silverblue]] ## Subtopics - ## Rebasing on signed Universal Blue images First, install an unsigned image: ```bash 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 ```bash rpm-ostree rebase ostree-image-signed:docker://ghcr.io/ublue-os/bluefin:39 ``` ## Bookmarks - ## Questions - ## Related topics -