The advantage of CoreOS is that it updates itself.
The disadvantage is that it updates itself.
We had a problem with a client's CoreOS machine and before I could get to fix it, the machine had magically updated and fixed itself.
#FedoraCoreOS
Only seeing a notice in the monitoring that fedora core os has updated to a new major version and everything just works is pretty satisfying...
#fcos #fedoracoreos
#Fedora 42 has been released (#Linux / #FedoraLinux / #RedHat / #IBM / #FedoraWorkstation / #FedoraServer / #FedoraKDEPlasmaDesktop / #FedoraIoT / #FedoraCloud / #FedoraCoreOS / #FedoraARM / #FedoraSpins / #FedoraLabs / #FedoraKinoite) https://getfedora.org/
Help us test Fedora CoreOS 42 from today to Friday, Mar 24-28!
➡️ https://fedoramagazine.org/contribute-at-the-fedora-42-coreos-test-week/
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/
#BootableContainers #bootc #Fedora #CoreOS #AtomicDesktpos #FedoraCoreOS #FOSDEM #FOSDEM2025
Súper útil tener fedora coreos + podman quadlet para correr todos los servicios de mi cluster sin a penas mantenimiento. La inmutabilidad y la automatización innata funciona increíble.
PSA on Fedora CoreOS cloud uploads that will be getting pruned. These are for uploads that are older than two years.
If you're using one of these versions, please consider updating!
➡️ https://discussion.fedoraproject.org/t/starting-to-prune-fedora-coreos-cloud-images/138927
#Fedora 41 has been released (#Linux / #FedoraLinux / #RedHat / #IBM / #FedoraWorkstation / #FedoraServer / #FedoraIoT / #FedoraCloud / #FedoraCoreOS / #FedoraARM / #FedoraSpins / #FedoraLabs / #FedoraKinoite) https://getfedora.org/
Help us test Fedora IoT and Fedora CoreOS for the release of Fedora 41!
If you're familiar with Fedora Atomic Desktops, then these editions will not seem so different aside from the server use case.
Both test days are running from today, Oct 7 to Friday, Oct 11.
More details on how to participate: https://fedoramagazine.org/contribute-at-fedora-coreos-and-iot-test-week/
#Fedora #FedoraIoT #FedoraCoreOS #FCOS #FedoraAtomic #Linux #OpenSource
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
#Fedora #FedoraPodcast #FedoraAtomic #FedoraCoreOS #FedoraIoT #bootc #Linux #OpenSource
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/
#Fedora #FedoraCoreOS #bootc #CoreOS #FedoraAtomic #Linux #OpenSource
#Fedora 40 has been released (#Linux / #FedoraLinux / #RedHat / #IBM / #FedoraWorkstation / #FedoraServer / #FedoraIoT / #FedoraCloud / #FedoraCoreOS / #FedoraARM / #FedoraSpins / #FedoraLabs / #FedoraKinoite) https://getfedora.org/
"Due to a bug in rpm-ostree, the '/etc/[g]shadow[-]' files in Fedora CoreOS, Fedora IoT and Fedora Atomic Desktops have the world-readable bit set.
To fix impacted systems immediately, run the following command as root:
$ chmod --verbose 0000 /etc/shadow /etc/gshadow /etc/shadow- /etc/gshadow-
For more details, notably the full list of affected versions, see: https://github.com/coreos/rpm-ostree/security/advisories/GHSA-2m76-cwhg-7wv6 "
- @siosm, Fedora maintainer
#Fedora #FedoraAtomic #FedoraCoreOS #CoreOS #Silverblue #Kinoite
Due to a bug in rpm-ostree, the '/etc/[g]shadow[-]' files in Fedora CoreOS, Fedora IoT and Fedora Atomic Desktops have the world-readable bit set.
To fix impacted systems immediately, run the following command as root:
$ chmod --verbose 0000 /etc/shadow /etc/gshadow /etc/shadow- /etc/gshadow-
For more details, notably the full list of affected versions, see: https://github.com/coreos/rpm-ostree/security/advisories/GHSA-2m76-cwhg-7wv6
#Fedora #CoreOS #FedoraCoreOS #IoT #FedoraIoT #AtomicDesktops #FedoraAtomicDesktops #Silverblue #Kinoite
Starting tomorrow we have a series of Test Days coming for different projects. Maybe contribute with testing for the ones that pique your interest?
* Mar 20-26: @Podman_io Desktop (for Windows and macOS as well)
* Mar 21-26: Podman 5
* Mar 25 - Apr 1: Fedora CoreOS
* Mar 27: (Toolbx) @containertoolbx
Get started: https://fedoramagazine.org/contribute-at-fedora-coreos-podman-and-toolbx-test-days/
#Podman #CoreOS #Toolbx #FedoraCoreOS #Fedora #DevOps #CloudNative #Linux #OpenSource
Say hello to @containertoolbx, the Mastodon account for Toolbx!
If you use Fedora Atomic Desktops or Fedora CoreOS, this may be a neat account to follow as it's what we use to manage containers - an important part of how to use this kind of system.
Folks that are using #butane for with #fedoracoreos or #flatcar how do you handle secrets in the configuration?
I'm looking at the idea of removing the config after initial boot or some other option.
One route would be to use single use secerts (which work for say #tailscale which supports them) but not for others
#Fedora 39 has been released (#Linux / #FedoraLinux / #RedHat / #IBM / #FedoraWorkstation / #FedoraServer / #FedoraIoT / #FedoraCloud / #FedoraCoreOS / #FedoraARM / #FedoraSpins / #FedoraLabs / #FedoraKinoite) https://getfedora.org/
Last batch of sessions for the day! Watch LIVE. #Fedora #FlockToFedora #FlockIreland #AlmaLinux #CentOS #RHEL #RockyLinux #FedoraCoreOS
Panel: Upstream collaboration & cooperation in the Enterprise Linux ecosystem: https://sched.co/1Or6Q
Design Clinic with the Community Design Team: https://sched.co/1Or7O
Autotesting in Fedora: https://sched.co/1PSs5
Hands with CoreOS Assembler: https://sched.co/1PbMy
#fedoracoreos is a bit of game to deploy on cheap Hetzner and OVH VPSs and I don't like having to embed an ignition file that includes all my container setup.
So I'm working on an ansible role that will install python then add #podman quadlets and supporting files and directories.
This makes a really nice auto-updating container host.
Client Info
Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst