Updates, Upgrades & Rollbacks
Installing updates with Fedora Sericea is easy and fast. It also has a special rollback feature, in case anything goes wrong. Additionally, you can choose to have multiple versions of your operating system installed at all times, and you can choose which one to boot into whenever you start up your system.
Updating Fedora Sericea
OS updates currently have to be managed via the command line. To do this, run:
$ rpm-ostree upgrade
This will check for new updates and download and install them if they are available. Alternatively, to check for available updates without downloading them, run:
$ rpm-ostree upgrade --check
Upgrading between major versions
Upgrading between major versions (such as from Fedora 37 to Fedora 38) can be done using the
Skipping major releases is currently untested and is thus not supported. You should update only one major release at a time, i.e. from Fedora 37 to 38, etc.
First, make sure that you are running the latest update for the current version:
$ rpm-ostree upgrade
Reboot your system if needed. Then, verify that the branch for the next major version is available. You can print all available branches for Fedora Sericea with this command:
$ ostree remote refs fedora | grep sericea
After you’ve verified the name of your branch, you are ready to proceed. For example, to upgrade to Fedora Sericea 38, the command is:
$ rpm-ostree rebase fedora:fedora/38/x86_64/sericea
Currently, the default remote for Fedora Sericea 38 is named
The process is very similar to a system update: the new OS is downloaded and installed in the background, and you just boot into it when it is ready.
Additionally, you can choose to rebase to a different immutable variant of Fedora, like for example Fedora Silverblue or Fedora Kinoite. Fedora Silverblue and Fedora Kinoite are similar to Fedora Sericea, except for the fact that they use the GNOME desktop environment and the KDE Plasma desktop environment correspondingly.
What this means is, you can rebase to another immutable variant of Fedora to try it out, without ever touching your current system. Because the two system images are isolated from eachother, the two desktop environments will never be installed at the same time. All of your flatpak apps and /home files will stay persistent between rebases. Same applies for testing out the bleeding-edge version of Fedora Sericea, which is Rawhide.
If you decide to rebase, make sure to pin your current deployment, so you don’t accidentaly lose it (by default, only the two most recent deployments are kept).
Fedora Sericea keeps a record of the previous OS version, which can be switched to instead of the latest version. While this shouldn’t usually be necessary, it can be helpful if there is a problem with an update or an upgrade (rollbacks work the same way for both), as well as for development purposes.
There are two ways to roll back to the previous version:
Temporary rollbacks: to temporarily roll back to a previous version, simply reboot and select the previous version from the boot menu (often known as the grub menu).
Permanent rollbacks: to permanently switch back to the previous deployment, use the
After rolling back, you will technically be on an old OS version, and may be prompted to update. Updating will undo the rollback, so should be avoided if you want the rollback to stay in effect.
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