Guardians, today Bluefin switched its base from Fedora 41 to Fedora 42. The gathering of raptors is over, Bluefin GTS remains with F41 while Bluefin stretches her legs with the latest Fedora goodies.
KubeCon EU 2025 Project Report
As a bootc derived project we tend to align with the cadence of the rest of cloud native. That means we do status reports like this depending on where we are in the world at the time, and to ensure transparency. Previous status update: KubeCon US 2024 Project Report
First things first, here’s the Bluefin Spring 2025 playlist – like previous playlists, each song was picked for a certain reason, the interpretation is up to you. Rock out while you read this update and refresh yourself up on the docs!
You’ll receive this update during your next update window, or you can run an update manually by clicking on this icon:
Here’s the major Fedora release information:
- Fedora Magazine: What’s new in Fedora Workstation 42
- GNOME 48 release notes
- Bluefin changelog - and here are all the package updates
- If you’re looking for Fedora 41, check out Bluefin GTS, which released a few weeks ago.
This time Jacob Schnurr takes us to the Triassic:
Note that composefs is now enabled via upstream Fedora!
What is Bluefin?
Bluefin is an operating system for your computer. It is designed to be installed on a device upgrade for the life of the hardware – we accomplish this by sharing the maintenance and care of our systems together as a community. It is designed to be as “zero touch” as possible by providing a curated GNOME experience.
Bluefin (aka bluefin:stable) is our leading edge desktop, designed to bring you the newest version of Fedora and GNOME. It follows the CoreOS release schedule and comes ~2-3 weeks after Fedora has done it’s major upgrade. This is a great buffer without being overly tardy. This one came a bit later but it’s ready now!
Here’s a bit of a rundown with Alan Pope! Special thanks to Anchore, makers of Syft and Grype - which we use as our security scanners when making our builds and their advice has been invaluable to our project this cycle!
We fiercely invest in automation and distributed work, which is one of the many reasons why Linux and Open Source have devoured the industry. We strive to bring these cloud native features to the desktop.
If you’re brand new you can use the website to pick the right image or use one of the direct DL links:
- AMD/Intel: https://download.projectbluefin.io/bluefin-stable-x86_64.iso
- Nvidia: https://download.projectbluefin.io/bluefin-nvidia-open-stable-x86_64.iso
Major Changes
There are a few major changes from a Bluefin perspective that we’ve been looking forward to, let’s roll!
Installation Experience
Let’s get this out of the way … our installation experience continues to be the bane of our existence. Most of this project is automated, but the installation experience takes a disproportionate amount of time, most of the last two months have been us scrambling to make ISOs work. As of today there are no bootc installers that are production ready for end users, this has been a problem for years so we’re exploring multiple options. I’m kinda done with snakes.
This cycle we will be producing two sets of ISOs for installation. One is the the older Anaconda installer, and one is Fyra Labs’ new readymade installer. Both sets are listed on this download page. Production of both ISOs is automated so we can kick the tyres on both and take a closer look in October for the next set of releases. The website will default to the Anaconda installers.
-
Refreshed Anaconda ISOs - Thanks to a herculean effort by Jason Naggin and Noel Miller we have refreshed ISOs on the website, based on the Fedora Anaconda installer.
- These are offline ISOs so they include all the flatpaks and everything you need to get up and running in one download.
- Don’t overthink it these are basically fine.
-
New Readymade Installation Media - thanks to our friends at Fyra we have a new installer that we’re making available.
- The major new feature is being able to try Bluefin via a “Live CD”, which was never possible before. This is especially useful for testing wireless drivers, Nvidia support, etc.
- This is also an offline installer and includes all the flatpaks, the major difference is that these offer a LiveCD experience.
- Note that this installer is still very young, but we’re hoping to keep revving fast on it. The more feedback and fixes you submit, the faster it goes.
And for some color (if it’s not obvious), there’s no future for legacy installers in the new world. We plan to aggressively pursue aligning our installation methods with the rest of the cloud native ecosystem so we don’t have to deal with this. I’d like to take a moment to shout out the intergration work @tulilirockz has been doing to deliver this. Without her there would be no ISOs, or Bluefin. Much love.
We are not out of the woods yet, but we’re making significant progress so this might take a few weeks still.
Other Major Changes
-
ComposeFS information for F42 upgrades - this is the biggest heads up, if you move to stable there’s no going back to GTS. James has added guards and warnings to
ujust rebase-helperto remind you. This is a one time migration, it sucks that it’s a one way trip. On the plus side someday in the future your base OS, containers, and flatpaks will all be consuming composefs for some great efficiency wins. More to follow on this as we learn more from upstream. -
As usual most of the changes are the work we do in GitHub to deliver Bluefin and not so much in the image itself. This took up the bulk of the work this cycle. Here’s a huge changelog of the package updates. You can also check out the release notes or use
ujust changelogsto keep track of what’s going on. -
We really, really made some efficiency gains across Universal Blue this cycle, we were able to grow the team while getting faster.
- We’ve centralized a ton of things from the individual images to the packages repo - the team slayed here, with Tulip and Zeglius leading the work. This has led to more sharing and reviewing across the board. This is also a great place to get started contributing!
- This centralization led to use removing tons of old founder code that hasn’t been touched, though it did cause tiny but annoying issues. But it’s going to lead to less bugs over time.
- Bluefin now shares more code with Aurora and Bazzite, so the repo has been shedding weight, we’re always trying to delete as much of Bluefin as we can.
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Some packages have moved to flatpaks: Upcoming changes to Bluefin packages for the F42 release
-
This cycle has also been all about being more up front about our project metrics:
Documentation Improvements
Note: Bluefin GTS users will also get this documentation update.
We really spent a ton of time on the docs this cycle. I consider them mostly feature complete now. docs.project.bluefin is always linked from your terminal motd too. 
Thanks to the magic of princexml we’re able to generate a pretty amazing offline PDF of the Bluefin docs:
Note that we will replace the Yelp help application with a link to this doc, which will open in the Papers PDF reader automatically. Yelp’s had some problems, so it’s time to say goodbye.
We will also replace the Documentation shortcut in the logo menu with this instead so that documentation will always be browsable when offline. The blue u shortcut to the online docs will remain in the menu unchanged. We hope to finish this up soon.
The PDF is built every time we update the docs and is copied over as part of the build process, so your offiline documentation will always be up to date.
ARM Image
We are currently not producing an ARM build of Bluefin or Bluefin GTS. However we do have an ARM image of Bluefin LTS, which is in Beta, you can select it from the this list.
It’s very good and on track to GA sometime this summer, so help there is appreciated. We’re still working on ARM builds for Bluefin and Bluefin GTS.
Deprecation Notices
Extinction is a natural part of life. These will take effect when we migrate to Fedora 43 this fall so we’re giving you a full release cycle heads up.
Nvidia Closed Images
Due to Nvidia’s software support changes we can no longer support the older closed modules for Nvidia cards.
- We will continue to make the Nvidia closed driver images for the remainder of this cycle. If your Nvidia card is OLDER than Turing+ / GTX 16XX+ this is the last release of Bluefin that will run on your card with these drivers.
- In some cases these older cards may run better with NVK on a vanilla image.
- Due to these changes being out of our control we cannot guarantee that older cards will work on the subsequent GTS release either. Sorry.
- We will not be generating ISOs for the closed driver images.
- We will migrate you to the new
nvidia-openimages automatically during an upgrade if your hardware supports it. So any GTX 16XX+ and RTX Series cards will be migrated over with no action needed from you. - Pour one out for that GTX 1080Ti, the thing rocked for an absurdly long time, rest in peace friend.
Bluefin HWE Images
If you are using one of the old hwe images for Surface/Asus, this is the last cycle that we will be generating them. We haven’t linked to their ISOs in a long time but there’s a handful of you still rocking these. If you’re using one of these images you’ll see hwe in your bootc status or fastfetch output.
- Use
ujust rebase-helperand select thelateststream. - If you own one of these devices we recommend trying this sooner rather than later to see where your device stands today.
- If anyone is interested in maintaining images for Asus and Surface devices let us know and we’d be happy to link to your images.
More Information
Bluefin is a deinonychus, and may snap at you occasionally. Three year olds can get feisty of so there might be issues that you discover that we haven’t seen before. Filing issues is always appreciated.
We also accept donations to sponsor the infrastructure and artwork. If there’s a piece of software in Bluefin that makes you happy, consider donating to the upstream organization and/or authors. Thanks to the present (and past!) supporters for helping out.
Check the docs for all the available version options:
Is that it?
Nothing makes ops people happier than uneventful things.
Today is really like any other, we just updated a few tags, you always have the option to go to any version we support at any time. Wether you like the chill vibe of bluefin:gts, the refined aggresiveness of bluefin:stable, the raptor abides.
Here’s the current lay of the land:
gts |
stable or stable-daily |
latest |
|
|---|---|---|---|
| Fedora Version: | 41 | 42 | 42 |
| GNOME Version: | 47 | 48 | 48 |
| Target User: | Most users | Enthusiasts | Advanced users |
| System Updates: | Weekly | Weekly or Daily | Daily |
| Application Updates: | Twice a Day | Twice a Day | Twice a Day |
| Kernel: | Gated | Gated | Ungated |
Other Universal Blue News
M2 has moved ublue-os/main to use one justfile for builds. This means that you can just now git clone and build images on the spot. This also makes it easy to build our images on any infrastructure (Gitlab, etc.). Bluefin is already set up this way, so go nuts!
Desktop DevOps folks wanted!
Bluefin is an active predator and is constantly hungry. You can help keep Bluefin healthy by becoming a contributor! We are an open source project and accept contributions:
- Help Wanted issues
- Contributing Guide
As a cloud native project we are always looking for contributors with skills in Podman, Docker, CI/CD, GitHub Actions, and good ole bash.
What’s Next?
- Bluefin LTS and Bluefin GDX are looking solid, mostly it’s just waiting for secureboot support.
Community Health Metrics
And lastly let’s take a look at how we’re doing. This year started off nice and boring but soon our community experienced some amazing growth. Let’s start off with our conversations on Discord, Discourse, GitHub, and Reddit. This is a measure of just how active our community is in helping each other out.
Lots of growth here, we’re proud to announce that we just crossed 16,000 folks on the Discord. Contributions have experienced the same level of growth.
And here are where people are submitting pull requests in GitHub. 123 individual people have contributed a pull request to Universal Blue in the last six months. As you can see we have a nice even spread of contributions across the board, this is a good thing!
Usage
Keep those great numbers in mind because we have a correction to make to one of our most important metrics. Timothee Ravier at Fedora was preparing his talk for Flock and noticed a problem with the countme metrics. Fedora and Universal Blue have been counting devices twice, doh! Here is the corrected chart.
The chart is the same, all the numbers are cut in half though. If we look at the number of machines checking in with Fedora every week:
- Bazitte has crossed
30,00015,000 devices - Bluefin is flirting with
4,0002,000 devices, depending on the week - Aurora is at about
2,2001,100 devices - Bluefin LTS and Aurora LTS make up
400200 total - they are still beta and hard to find so no surprises here.
It’s fine, I mean sure, it sucks to know your userbase is half of what you thought it was, but let’s look at what the team principal at Williams F1 has to say:
Data, for me, is the foundation of F1. There’s no human judgment involved. You’ve got to get your foundation right in data.
– James Vowles
So error corrected, and the big takeaway from this is to remember, the contribution metrics are the key to our success. The Atomic universe is half the size we thought it was, but at least we’re consistent with each other and understanding that measuring this stuff is the key to long term success, despite the occasional bummer. We’ve always been about the slow burn, and you probably know how much we thrive under the radar anyway.
We are of course, inevitable.
Let’s look at image pulls. Note that image pulls aren’t indicative of users, instead we use it as a gauge of how many successful upgrades we’ve had. Here are all the images with more than 1 million pulls:
And lastly, let’s take a look at the last 90 days of homebrew analytics
All of our images are represented well here considering how small we are.
Stay Safe
- Always read the documentation before venturing out into the wild.
If you haven’t read the docs in a while, check them out, we put a ton of effort in them this cycle.
We’ll see everyone this summer to talk about Bluefin LTS — meanwhile enjoy the release!
Feel free to ask questions!
Inspiration
Please leave a picture of your Bluefin setup for others to enjoy!
