coreos-status March 2022

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4 discussions

Fedora CoreOS next stream rebased to Fedora Linux 36
by Dusty Mabe 29 Mar '22

29 Mar '22

Fedora Linux 36 Beta was released today [1]. Our Fedora CoreOS `next` stream has been migrated to Fedora Linux 36 content. Existing nodes on the `next` stream will update as normal over the following days. In addition to the Fedora Project accepted changes for Fedora 36 [2], there are a few Fedora CoreOS recent announcements to consider with this update: - Fedora CoreOS moving to podman v4 [3] - Fedora CoreOS moving to iptables-nft [4] Please test out the `next` stream over the coming month and report any issues in our issue tracker [5]. Thank you to everyone helping find issues by running the `next` stream! The Fedora CoreOS Team [1] https://fedoramagazine.org/announcing-fedora-36-beta/ [2] https://fedoraproject.org/wiki/Releases/36/ChangeSet [3] https://discussion.fedoraproject.org/t/fedora-coreos-moving-to-podman-v4/37… [4] https://discussion.fedoraproject.org/t/fedora-coreos-moving-to-iptables-nft… [5] https://github.com/coreos/fedora-coreos-tracker/issues

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Changes to VMware OVF metadata
by Micah Abbott 24 Mar '22

24 Mar '22

We have planned some changes to the OVF metadata inside the Fedora CoreOS VMware OVA. Scheduled for the next cycle of `testing` and `next` releases: - OVF metadata will select UEFI firmware by default - OVF metadata will enable Secure Boot by default - OVF metadata will identify the OS as Fedora instead of RHEL 7 These changes will flow into `stable` the week of April 11. You can track the status of this change at https://github.com/coreos/fedora-coreos-tracker/issues/1140. Scheduled for after October 15, when vSphere 6.5 and 6.7 will reach end of life: - OVF metadata will update from hardware version 13 to version 17 You can track the status of this change at https://github.com/coreos/fedora-coreos-tracker/issues/1141. If these changes break your deployment workflow, please follow up in the issues listed above or open a new issue. Micah Abbott, for the Fedora CoreOS team

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Latest kernel update can cause NFS mount failures
by Dusty Mabe 14 Mar '22

14 Mar '22

The most recent kernel update to 5.16.13-200.fc35 has been reported to cause failures for NFS clients connecting to some QNAP NAS systems. Details of the issue as well as links to upstream forum posts and downstream bug reports can be found in our issue tracker: https://github.com/coreos/fedora-coreos-tracker/issues/1121 Fortunately this bug was caught in our `testing` stream. Unfortunately, we do need to proceed promoting this kernel into our `stable` stream because the update will fix CVE-2022-0847 (known as "dirty pipe"). If you will be affected by this bug, the easiest workaround is to switch the mount options for the mount to add `vers=4.0` for NFS 4.0. You can then follow progress in the tracker issue to know when to revert the change. Dusty Mabe for the Fedora CoreOS Team

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Fedora CoreOS moving to podman v4
by Jonathan Lebon 01 Mar '22

01 Mar '22

In the coming months, the Podman container runtime will be upgraded from v3 to v4. This is a major release [1] that introduces backward incompatible changes to configuration files and APIs. The full release notes for Podman v4 are available at [2]. Here is a brief summary of how this will impact Fedora CoreOS nodes: - Existing containers will be preserved without any change required. - Compatibility for the Docker API is fully preserved. - Users of the Podman remote API will need matching server/client versions. - Rollbacks to a version with Podman v3.x will require manual action. - Only new installations will use the new network stack by default. For more details, see the Major Changes page in the Fedora CoreOS documentation [3]. This change will be rolled out together with the rebase to Fedora 36: - the `next` rebase is targeted for 2022-03-15 - the `testing` rebase is targeted for 2022-04-19 - the `stable` stream will follow `testing` as usual Thanks, Jonathan Lebon, for the Fedora CoreOS team [1] https://podman.io/releases/2022/02/22/podman-release-v4.0.0.html [2] https://github.com/containers/podman/releases/tag/v4.0.0 [3] https://docs.fedoraproject.org/en-US/fedora-coreos/major-changes/#_podman_v…

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coreos-status March 2022