We are bringing UKI and strong boot integrity guarantees with composefs to Bootable Containers. We demonstrated our latest progress on that front at DevConf.cz 2025: https://pretalx.devconf.info/devconf-cz-2025/talk/739KGC/

We are bringing UKI and strong boot integrity guarantees with composefs to Bootable Containers. We demonstrated our latest progress on that front at DevConf.cz 2025: https://pretalx.devconf.info/devconf-cz-2025/talk/739KGC/
@cgwalters we started using bootc images for Copr builders and so far everything works great.
Work shill. I will be running a 2 hour interactive workshop next week on #redhat #linux #imagemode AKA #bootc upstream and what forms the basis of a few really cool community projects including #bazzite / #universalblue
This is an #APAC/#ANZ friendly time-slot next Tuesday - register here : https://red.ht/3ZrFJrK
6 days until #EU_OS at Paris #HackDays: EU OS is a so-called atomic operating system that offers interruption free software updates thanks to #bootc (bootable container) technology. While people work, bootc downloads and installs unnoticeable to the user the update. After the next computer restart (trigged by the user), EU OS switches to the new version. If something breaks, the user can roll back. 1/2
Dear @debby ,
can you please check out first our FAQ at https://eu-os.eu/faq#sovereignty
So far, #LinuxMint does not support #bootc, which EU OS relies on to enable collaboration through sharing of container layers.
Reboost plz: #EU_OS is now partner for the French Gov Hack days early June in Paris.
The organisers were so kind to create a dedicated track covering the OS part of the digital workspace.
Check out the call for participants to join the EU OS team in Paris (or online):
https://gitlab.com/eu-os/eu-os.gitlab.io/-/issues/31
Hack days website:
https://hackdays.numerique.gouv.fr/en
Bootc as a project is one with tons of promise and lots of community support. It's what is powering the next generation of Atomic Desktops, CoreOS, and Fedora IoT, not to mention all of the work that @UniversalBlue has done to show off everything that can be done today.
If you want to follow bootc more closely, regular updates from Fedora's end are shared here. :)
NixOS is cool, but it's nothing new. I've seen many smart people doing an excellent job with chroot, symlinks, and Chef/Puppet long before NixOS came along. A really cool thing is the Atomic desktop and bootc model. If you want a secure and solid environment, the Atomic desktop is the way to go. There's a learning curve, but it opens up a whole new world for you. #nixos #atomicdesktop #bootc
With Allison, I presented at FOSDEM how we can combine UKI, composefs and containers to build a fully signed boot chain. The slides and the recording are now available: https://fosdem.org/2025/schedule/event/fosdem-2025-5191--signed-sealed-and-delivered-with-ukis-and-composefs/
This is how we are planning to bring boot chain integrity to Bootable Containers.
This is a follow up on the initial work that we presented last year at @allsystemsgo: https://cfp.all-systems-go.io/all-systems-go-2024/talk/HVEZQQ/
Going to @socallinuxexpo ? Find me at the https://cncf.io booth to come learn more about cloud native!
Oh and I'll have this lovely piece of kit from #Framework -- running the latest Bluefin prototype, based on CentOS Stream 10. Try it yourself, on _proper_ metal.
I will have a special run of Achillobator stickers, limited quantities so set yourself a reminder!
Presentations
• #Fedora #bootc - from Containerfile to (Virtual) Machine
http://docs.gbraad.nl/from-containerfile-to-virtual-machine/
• #Obsidian - just a fancy #markdown editor?
https://docs.gbraad.nl/obsidian-presentation/
• #Tailscale - from behind the firewall
https://docs.gbraad.nl/tailscale-presentation/
• #Flatpak - software distribution for a new era
http://docs.gbraad.nl/software-distribution-for-a-new-era/
• #dotfiles - Where ${HOME} is best
http://docs.gbraad.nl/dotfiles-presentation/
Red Hat has donated bootc to the Cloud Native Computing Foundation!
Announcement from @jorge: https://www.youtube.com/watch?v=hDpMxFIIOa4&pp=ygUSSm9yZ2UgY2FzdHJvIGxpbnV4
Red Hat announcement: https://www.redhat.com/en/blog/red-hat-contribute-comprehensive-container-tools-collection-cloud-native-computing-foundation?sc_cid=701f2000000tyBjAAI
Fedora 41 did not see big changes for Fedora Atomic Desktops, but we are certainly ramping up for the switch to bootc and being fully image-based!
Learn more about what's new for Fedora Atomic Desktops and what is coming for Fedora 42!
https://fedoramagazine.org/whats-new-for-fedora-atomic-desktops-in-fedora-41/
If #FedoraAtomic ends up adopting #bootc with release *42* I will consider it a good omen in favor of bootable containers
Catch the episode on bootable containers from the Fedora Podcast! Will be live streamed today at 5pm EDT.
This will be all about bootc and how it expands on the atomic model that we see in Fedora Atomic Desktops , Fedora IoT, and Fedora CoreOS. Won't be the last time you hear about this!
Live stream: https://www.youtube.com/watch?v=zF7aTCoWoLQ&pp=ygUORmVkb3JhIHByb2plY3Q%3D
You know how with Fedora Atomic Desktops and Fedora CoreOS you can rebase to other images with rpm-ostree? With that you need to have an rpm-ostree system to start and then rebasing becomes available to you.
What if you could do the same starting from a regular Linux system and migrating to an atomic one? That's one feature being explored with bootc that Ben Breard talks about in this video!
Update: Show will be rescheduled due to conflicts
Join us today at 5pm EDT (9pm UTC) for an update on the atomic world of Fedora on the Fedora Podcast! @siosm will be explaining what bootc is, how it relates to rpm-ostree, and how it relates to the *future of desktop Linux.*
Hint: image-based
Livestream: https://www.youtube.com/watch?v=zF7aTCoWoLQ
Bootc is basically the next generation of rpm-ostree. Here's an early look at bootc from someone who happened to start looking into Fedora CoreOS at the same time as bootc was announced. It's an organic exploration of both!
https://fedoramagazine.org/a-great-journey-towards-fedora-coreos-and-bootc/
Was working today on kind of an entry piece for Community Design Team: a logo and new mascot for #Bootc (special type of container).
His name is Bootseef and he's ready to fly through updates! Thanks to Madeline Peck and Design Team for the sketches, sources and color choices that inspired me.
I enjoyed doing this particular mascot the most.
@fedora.design and #CommunityDesignTeam have lots of work on their plate, so I invite aspiring and designers by trade to have a looksie-look in their GitLab issues. @fedora has engineering and other teams worth their gold, making software great, as well.