Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

cgroups v1: Remove deprecated example & add major changes section #681

Merged
merged 3 commits into from
Nov 15, 2024
Merged

cgroups v1: Remove deprecated example & add major changes section #681

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
67c5e9b
kernel-args: Remove deprecated cgroups v1 example
travier Nov 15, 2024
116f28a
major-changes: Add a section for disabled cgroups v1
travier Nov 15, 2024
111cb43
major-changes: Update some older release & dates
travier Nov 15, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 0 additions & 13 deletions modules/ROOT/pages/kernel-args.adoc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,19 +4,6 @@

You can specify kernel arguments in a Butane config using the `kernel_arguments` section.

=== Example: Staying on cgroups v1

Starting from June 2021, cgroups v2 is the default on new installations of Fedora CoreOS. Here's an example `kernelArguments` section which adds the `systemd.unified_cgroup_hierarchy=0` kernel argument so that the machine keeps using cgroups v1:

[source,yaml,subs="attributes"]
----
variant: fcos
version: {butane-latest-stable-spec}
kernel_arguments:
should_exist:
- systemd.unified_cgroup_hierarchy=0
----

=== Example: Disabling all CPU vulnerability mitigations

Here's an example `kernelArguments` section which switches `mitigations=auto,nosmt` to `mitigations=off` to disable all CPU vulnerability mitigations:
Expand Down
37 changes: 34 additions & 3 deletions modules/ROOT/pages/major-changes.adoc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,37 @@ This list is in reverse chronological order to keep recent changes at the top.

// To add a new change here, see the template at the end of the file.

== cgroups v1 support disabled

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.
You must update your kernel arguments before the update.

.Update an existing system from cgroupsv1 to cgroupsv2 and immediately reboot

[source,bash]
----
$ sudo rpm-ostree kargs --delete=systemd.unified_cgroup_hierarchy --reboot
----

=== Planning

This change has been rolled out as part of the rebase to Fedora 41.

|===
|Update Stream |Targeted release date

|`next` | 41.20240916.1.0 (Sep 16, 2024)
|`testing`| 41.20241027.2.0 (Oct 28, 2024)
|`stable`| 41.20241027.3.0 (Nov 08, 2024)
|===

=== Notes

See: https://github.com/coreos/fedora-coreos-tracker/issues/1715#issuecomment-2331986149[fedora-coreos-tracker/issues#1715].

Detailed description of the change, the impacts, how to test, what manual actions are needed, etc.

== Podman v5.0

The Podman container runtime will be upgraded from v4 to v5. This is a https://blog.podman.io/2024/03/podman-5-0-has-been-released/[major release] that removes support for CNI networking in favor of Netavark.
Expand All @@ -22,9 +53,9 @@ This change will be rolled out together with the rebase to Fedora 40.
|===
|Update Stream |Targeted release date

|`next` | 40.20240322.1.0
|`testing`| To Be Determined
|`stable`| Will follow `testing` as usual
|`next` | 40.20240322.1.0 (Mar 24, 2024)
|`testing`| 40.20240416.2.0 (Apr 22, 2024)
|`stable`| 40.20240416.3.1 (May 07, 2024)
|===

=== Notes
Expand Down
Loading