HackMDFedora CoreOS rebasing to Fedora Linux 41
Fedora Linux 41 was released today [1]. The Fedora CoreOS testing stream has been rebased and is currently rolling out. In two weeks, it will be promoted to the stable stream.
For more information about Fedora 41, see the Fedora Project’s list of official Changes [2] and the Fedora CoreOS analysis of each Change [3].
The following changes require special attention:
- Fedora CoreOS is dropping Wi-Fi firmware packages that were split into subpackages of linux-firmware [4]. If you are currently using Wi-Fi, see the documentation for how to keep it enabled [5].
- Composefs is now enabled by default [6]. Pay special attention to the known issues [7].
- In systemd v256 cgroups v1 support was disabled. If you’ve opted out of the cgroups v2 migration in the past, your system will fail to boot after upgrading.
- moby-engine/Docker was updated in Fedora from version 24 to version 27. Please see the notes [8] with each release of moby and also the deprecated/removed features page [9] to see if there is any noteworthy changes for your use cases.
Please test out the testing stream and report any issues in our issue tracker [10].
Thank you to everyone helping find issues by running the next and testing streams!
The Fedora CoreOS Team
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coreos-status@lists.fedoraproject.org
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Fedora CoreOS rebasing to Fedora Linux 40
Fedora Linux 40 was released today[1]. The Fedora CoreOS testing stream has been rebased and is currently rolling out. In two weeks, it will be promoted to the stable stream.
For more information about Fedora 40, see the Fedora Project’s list of official Changes[2] and the Fedora CoreOS analysis of each Change[3].
The following changes require special attention:
- Podman v5.0[4]: This release contains breaking changes. See the Podman website[5] and the tracker issue[6] for details.
- Assign individual, stable MAC addresses for Wi-Fi connections[7]: If you are using Wi-Fi, then your system's MAC address will likely change after the update.
Please test out the testing stream and report any issues in our issue tracker[8].
Thank you to everyone helping find issues by running the next and testing streams!
The Fedora CoreOS Team
4
https://discussion.fedoraproject.org/t/fedora-coreos-rebasing-to-fedora-linux-39/95330
- https://github.com/coreos/fedora-coreos-tracker/issues/1655
- https://github.com/coreos/fedora-coreos-tracker/labels/F40-Changes
The Fedora Linux 40 Beta was released today[1] and our Fedora CoreOS next stream has been migrated to Fedora Linux 40 content. Existing nodes on the next stream will update as normal over the following days.
The Fedora Project accepted changes for Fedora 40 are in the Wiki[2] and the Fedora CoreOS analysis of each change is documented in the tracker[3].
The following changes require special attention:
- Podman v5.0
The following changes may impact some specific setups:
- Switch to using OSBuild for most CoreOS boot image building
- Newly deployed
qemuor baremetalsystems will use disk images built using OSBuild. - https://github.com/coreos/fedora-coreos-tracker/issues/1653
- Newly deployed
- Enable IPv4 Address Conflict Detection by default
- Conflict detection can delay startup by ~200ms.
- https://fedoraproject.org/wiki/Changes/Enable_IPv4_Address_Conflict_Detection
- https://github.com/coreos/fedora-coreos-tracker/issues/1656
- Assign individual, stable MAC addresses for Wi-Fi connections
- If you are using WiFi, then your systems MAC address will likely change after the update.
- https://fedoraproject.org/wiki/Changes/StableSSIDMACAddress
- Switch pam_userdb from BerkeleyDB to GDBM
- If you have overlayed vsftpd on your systems and use pam_userdb, then you need to convert the database using the instructions from pam_userdb.
- https://fedoraproject.org/wiki/Changes/PamBerkeleyDBtoGdbm
- https://github.com/coreos/fedora-coreos-tracker/issues/1634
Please test out the next stream over the coming weeks and report any issues in our issue tracker[4].
Thank you to everyone helping find issues by running the next stream!
The Fedora CoreOS Team
