Fedora Silverblue provides guide for rebasing to Fedora Linux 45

Fedora Magazine has released a technical guide detailing the upgrade process for Fedora Silverblue to the Fedora Linux 45 release. This guide is specifically designed for users of Fedora's atomic desktop ecosystem, which utilizes OSTree technology to manage system deployments.

The instructions cover multiple upgrade paths, including a graphical method via GNOME Software and a command-line approach using rpm-ostree. The guide also addresses critical maintenance tasks such as handling rpm-fusion layered packages and utilizing the system's inherent ability to roll back to previous deployments via the GRUB menu if the upgrade fails.

Upgrading Fedora Atomic Desktops

• Upgrade Mechanism: The process utilizes the rpm-ostree tool to rebase the system to the new Fedora 45 x86_64 branch, such as fedora:fedora/45/x86_64/silverblue.
• Deployment Management: Users can use ostree admin pin to keep current deployments in the GRUB menu, ensuring a safety net exists before initiating the rebase.
• Rollback Procedure: If a boot failure occurs on the new version, users can select a previous deployment from the GRUB menu or execute rpm-ostree rollback to make the reversion permanent.
• Package Compatibility: For systems with layered rpm-fusion repositories, the guide recommends a specific uninstall/reinstall sequence of the release packages to prevent rebase errors.
• Version Sequencing: The documentation advises against skipping major versions (e.g., moving directly from 42 to 45) to maintain system stability and avoid errors.

Why it matters

This guide clarifies the upgrade lifecycle for the Fedora Atomic Desktop family, including Silverblue, Kinoite, Sericea, and Onyx. It highlights the reliability of the OSTree-based deployment model, which is essential for developers and users requiring stable, immutable desktop environments.